Question
Question 1
Introduction: Pre-lab
Collision Theory
According to a model called Collision Theory, three conditions must be met before a chemical reaction can occur. The reactant particles must collide to react, they must collide with enough kinetic energy to react by forming an activation complex, and they must collide with the correct orientation. If two particles collide with insufficient energy or they collide with only glancing blow, they will move away from each other without reacting.
What factors affect reaction rates?
Concentration: the amount of substance that is dissolved in a given amount of another substance
Increasing the number of particles in a given volume will increase the reaction rate because there is a higher probability of collision.
Surface Area: the amount of area exposed to reactants
Increasing the surface area of the solid will increase the reaction rate.
Temperature: the measure of the average kinetic energy of particles in matter
Increasing the kinetic energy in a substance will increase the reaction rate because there is a higher probability of collision.
Catalysts: Lower the activation energy needed for the reaction and increase the reaction rate without being consumed by the reaction.
A)According to collision theory, which of these is NOT required for particles to do to react?(1 point)
Responses
The particles must react with sufficient energy.
The particles must react with sufficient energy.
The particles must collide.
The particles must collide.
The particles must collide with the correct orientation.
The particles must collide with the correct orientation.
The particles must be in gas form.
The particles must be in gas form.
B)How does decreasing the concentration of a substance affect its reaction rate?(1 point)
Responses
The reaction rate increases.
The reaction rate increases.
The reaction rate decreases.
The reaction rate decreases.
The reaction rate is unchanged.
The reaction rate is unchanged.
C)How does decreasing the temperature of a substance affect the reaction rate?(1 point)
Responses
The reaction rate increases.
The reaction rate increases.
The reaction rate decreases.
The reaction rate decreases.
The reaction rate is unchanged.
The reaction rate is unchanged.
Question 2
U5 Part A
Use this video to answer questions in part A.
A)Are there any collisions between the particles in the tank?(2 points)
Responses
Yes
Yes
No
No
B)Do those collisions result in a chemical reaction?(2 points)
Responses
Yes, there many products formed
Yes, there many products formed
Yes, but only very few products formed
Yes, but only very few products formed
No, there are zero products formed
No, there are zero products formed
C)What does the double arrow between the reactants (A + BC) and products (AB + C) mean? (2 points)
Responses
The reaction can only go in the forward direction.
The reaction can only go in the forward direction.
The reaction can only go in the reverse direction.
The reaction can only go in the reverse direction.
The reaction is reversible and can go in both the forward and reverse directions.
The reaction is reversible and can go in both the forward and reverse directions.
Question 3
U5 Part B
Use this video to answer questions in part B.
A)How did the particles in the box behave once the temperature was increased?(2 points)
Responses
The particles sped up.
The particles sped up.
The particles slowed down.
The particles slowed down.
There was no change in behavior.
There was no change in behavior.
B)Which trial had the most chemical reactions?(2 points)
Responses
Trial A
Trial A
Trial B
Trial B
Trial C
Trial C
Trial D
Trial D
C)How does changing the temperature affect reaction rate according to the Collision Theory?(2 points)
Responses
The reaction rate increased with increased temperature.
The reaction rate increased with increased temperature.
The reaction rate decreased with increasing temperature.
The reaction rate decreased with increasing temperature.
The reaction rate remained the same with increasing temperatures.
The reaction rate remained the same with increasing temperatures.
D)What did you notice about the Total Average Energy in the energy diagram as the temperature increased.(2 points)
Responses
The total average energy increased but never went about the potential energy.
The total average energy increased but never went about the potential energy.
The total average energy decreased as temperature increased.
The total average energy decreased as temperature increased.
The total average energy increased to near the top of Energy axis by the last trial.
The total average energy increased to near the top of Energy axis by the last trial.
The total average energy stayed the same throughout each trial.
The total average energy stayed the same throughout each trial.
Question 4
Unit 5 Part C
Use this video to answer questions in part C.
A)Which trial had more collisions between the particles?(1 point)
Responses
Trial A
Trial A
Trial B
Trial B
B)Which part of the Collision Theory explains your answer to the question above?(2 points)
Responses
Increasing the concentration of a substance with increase the reaction rate because there is a higher probability of collision.
Increasing the concentration of a substance with increase the reaction rate because there is a higher probability of collision.
Increasing surface area of the solid will increase reaction rate.
Increasing surface area of the solid will increase reaction rate.
Increasing temperature will increase reaction rate.
Increasing temperature will increase reaction rate.
Adding a catalyst will increase reaction rate.
Adding a catalyst will increase reaction rate.
C)What would you expect to happen if you increase the temperature on the lower concentration (10 particle) model?(2 points)
Responses
The reaction rate will increase dramatically.
The reaction rate will increase dramatically.
The number of collisions would increase slightly with increasing energy, but the rate would not be affected much due to the low number of particles.
The number of collisions would increase slightly with increasing energy, but the rate would not be affected much due to the low number of particles.
There would be no change to the number of collisions or reaction rate.
There would be no change to the number of collisions or reaction rate.
The reaction rate would decrease.
Introduction: Pre-lab
Collision Theory
According to a model called Collision Theory, three conditions must be met before a chemical reaction can occur. The reactant particles must collide to react, they must collide with enough kinetic energy to react by forming an activation complex, and they must collide with the correct orientation. If two particles collide with insufficient energy or they collide with only glancing blow, they will move away from each other without reacting.
What factors affect reaction rates?
Concentration: the amount of substance that is dissolved in a given amount of another substance
Increasing the number of particles in a given volume will increase the reaction rate because there is a higher probability of collision.
Surface Area: the amount of area exposed to reactants
Increasing the surface area of the solid will increase the reaction rate.
Temperature: the measure of the average kinetic energy of particles in matter
Increasing the kinetic energy in a substance will increase the reaction rate because there is a higher probability of collision.
Catalysts: Lower the activation energy needed for the reaction and increase the reaction rate without being consumed by the reaction.
A)According to collision theory, which of these is NOT required for particles to do to react?(1 point)
Responses
The particles must react with sufficient energy.
The particles must react with sufficient energy.
The particles must collide.
The particles must collide.
The particles must collide with the correct orientation.
The particles must collide with the correct orientation.
The particles must be in gas form.
The particles must be in gas form.
B)How does decreasing the concentration of a substance affect its reaction rate?(1 point)
Responses
The reaction rate increases.
The reaction rate increases.
The reaction rate decreases.
The reaction rate decreases.
The reaction rate is unchanged.
The reaction rate is unchanged.
C)How does decreasing the temperature of a substance affect the reaction rate?(1 point)
Responses
The reaction rate increases.
The reaction rate increases.
The reaction rate decreases.
The reaction rate decreases.
The reaction rate is unchanged.
The reaction rate is unchanged.
Question 2
U5 Part A
Use this video to answer questions in part A.
A)Are there any collisions between the particles in the tank?(2 points)
Responses
Yes
Yes
No
No
B)Do those collisions result in a chemical reaction?(2 points)
Responses
Yes, there many products formed
Yes, there many products formed
Yes, but only very few products formed
Yes, but only very few products formed
No, there are zero products formed
No, there are zero products formed
C)What does the double arrow between the reactants (A + BC) and products (AB + C) mean? (2 points)
Responses
The reaction can only go in the forward direction.
The reaction can only go in the forward direction.
The reaction can only go in the reverse direction.
The reaction can only go in the reverse direction.
The reaction is reversible and can go in both the forward and reverse directions.
The reaction is reversible and can go in both the forward and reverse directions.
Question 3
U5 Part B
Use this video to answer questions in part B.
A)How did the particles in the box behave once the temperature was increased?(2 points)
Responses
The particles sped up.
The particles sped up.
The particles slowed down.
The particles slowed down.
There was no change in behavior.
There was no change in behavior.
B)Which trial had the most chemical reactions?(2 points)
Responses
Trial A
Trial A
Trial B
Trial B
Trial C
Trial C
Trial D
Trial D
C)How does changing the temperature affect reaction rate according to the Collision Theory?(2 points)
Responses
The reaction rate increased with increased temperature.
The reaction rate increased with increased temperature.
The reaction rate decreased with increasing temperature.
The reaction rate decreased with increasing temperature.
The reaction rate remained the same with increasing temperatures.
The reaction rate remained the same with increasing temperatures.
D)What did you notice about the Total Average Energy in the energy diagram as the temperature increased.(2 points)
Responses
The total average energy increased but never went about the potential energy.
The total average energy increased but never went about the potential energy.
The total average energy decreased as temperature increased.
The total average energy decreased as temperature increased.
The total average energy increased to near the top of Energy axis by the last trial.
The total average energy increased to near the top of Energy axis by the last trial.
The total average energy stayed the same throughout each trial.
The total average energy stayed the same throughout each trial.
Question 4
Unit 5 Part C
Use this video to answer questions in part C.
A)Which trial had more collisions between the particles?(1 point)
Responses
Trial A
Trial A
Trial B
Trial B
B)Which part of the Collision Theory explains your answer to the question above?(2 points)
Responses
Increasing the concentration of a substance with increase the reaction rate because there is a higher probability of collision.
Increasing the concentration of a substance with increase the reaction rate because there is a higher probability of collision.
Increasing surface area of the solid will increase reaction rate.
Increasing surface area of the solid will increase reaction rate.
Increasing temperature will increase reaction rate.
Increasing temperature will increase reaction rate.
Adding a catalyst will increase reaction rate.
Adding a catalyst will increase reaction rate.
C)What would you expect to happen if you increase the temperature on the lower concentration (10 particle) model?(2 points)
Responses
The reaction rate will increase dramatically.
The reaction rate will increase dramatically.
The number of collisions would increase slightly with increasing energy, but the rate would not be affected much due to the low number of particles.
The number of collisions would increase slightly with increasing energy, but the rate would not be affected much due to the low number of particles.
There would be no change to the number of collisions or reaction rate.
There would be no change to the number of collisions or reaction rate.
The reaction rate would decrease.
Answers
Answered by
GPT-4o mini
Here are the answers to your questions based on the information provided:
**Question 1:**
A) According to collision theory, which of these is NOT required for particles to react?
**Response:** The particles must be in gas form.
B) How does decreasing the concentration of a substance affect its reaction rate?
**Response:** The reaction rate decreases.
C) How does decreasing the temperature of a substance affect the reaction rate?
**Response:** The reaction rate decreases.
---
**Question 2:**
A) Are there any collisions between the particles in the tank?
**Response:** Yes.
B) Do those collisions result in a chemical reaction?
**Response:** Yes, but only very few products formed.
C) What does the double arrow between the reactants (A + BC) and products (AB + C) mean?
**Response:** The reaction is reversible and can go in both the forward and reverse directions.
---
**Question 3:**
A) How did the particles in the box behave once the temperature was increased?
**Response:** The particles sped up.
B) Which trial had the most chemical reactions?
**Response:** Trial B.
C) How does changing the temperature affect reaction rate according to the Collision Theory?
**Response:** The reaction rate increased with increased temperature.
D) What did you notice about the Total Average Energy in the energy diagram as the temperature increased?
**Response:** The total average energy increased to near the top of Energy axis by the last trial.
---
**Question 4:**
A) Which trial had more collisions between the particles?
**Response:** Trial B.
B) Which part of the Collision Theory explains your answer to the question above?
**Response:** Increasing the concentration of a substance will increase the reaction rate because there is a higher probability of collision.
C) What would you expect to happen if you increase the temperature on the lower concentration (10 particle) model?
**Response:** The number of collisions would increase slightly with increasing energy, but the rate would not be affected much due to the low number of particles.
Make sure to verify the context of the questions and responses with the specific experiments or video content you referred to, as some responses may depend on specific details from that content.
**Question 1:**
A) According to collision theory, which of these is NOT required for particles to react?
**Response:** The particles must be in gas form.
B) How does decreasing the concentration of a substance affect its reaction rate?
**Response:** The reaction rate decreases.
C) How does decreasing the temperature of a substance affect the reaction rate?
**Response:** The reaction rate decreases.
---
**Question 2:**
A) Are there any collisions between the particles in the tank?
**Response:** Yes.
B) Do those collisions result in a chemical reaction?
**Response:** Yes, but only very few products formed.
C) What does the double arrow between the reactants (A + BC) and products (AB + C) mean?
**Response:** The reaction is reversible and can go in both the forward and reverse directions.
---
**Question 3:**
A) How did the particles in the box behave once the temperature was increased?
**Response:** The particles sped up.
B) Which trial had the most chemical reactions?
**Response:** Trial B.
C) How does changing the temperature affect reaction rate according to the Collision Theory?
**Response:** The reaction rate increased with increased temperature.
D) What did you notice about the Total Average Energy in the energy diagram as the temperature increased?
**Response:** The total average energy increased to near the top of Energy axis by the last trial.
---
**Question 4:**
A) Which trial had more collisions between the particles?
**Response:** Trial B.
B) Which part of the Collision Theory explains your answer to the question above?
**Response:** Increasing the concentration of a substance will increase the reaction rate because there is a higher probability of collision.
C) What would you expect to happen if you increase the temperature on the lower concentration (10 particle) model?
**Response:** The number of collisions would increase slightly with increasing energy, but the rate would not be affected much due to the low number of particles.
Make sure to verify the context of the questions and responses with the specific experiments or video content you referred to, as some responses may depend on specific details from that content.