Water boils at 100°C and turns into steam. Which similarities or differences are there between water at 100°C and steam at 100°C? (1 point) Responses The particles will have more space between them as a liquid, but they will be moving at the same speed in both states. The particles will have more space between them as a liquid, but they will be moving at the same speed in both states. The particles will have more space between them and will be moving at higher speeds as steam. The particles will have more space between them and will be moving at higher speeds as steam. The particles will have more space between them as steam, but they will be moving at the same speed in both states. The particles will have more space between them as steam, but they will be moving at the same speed in both states. The particles will have more space between them as a liquid, but they will be moving faster as steam. The particles will have more space between them as a liquid, but they will be moving faster as steam.

11 answers

The correct response is: The particles will have more space between them and will be moving at higher speeds as steam.

At 100°C, water is in its liquid state, and when it boils, it transforms into steam (water vapor). In the gaseous state (steam), the particles are much farther apart than in the liquid state, which allows them to move freely and independently. Additionally, the kinetic energy of the particles in steam is greater, resulting in faster movement compared to the liquid state.

An ice cube tray full of water is put into a freezer. Which energy change occurs in the particles in the water as it undergoes a phase change from a liquid to a solid?(1 point) Responses The potential energy decreases due to the looser arrangement of the particles. The potential energy decreases due to the looser arrangement of the particles. The potential energy increases due to the tighter arrangement of the particles. The potential energy increases due to the tighter arrangement of the particles. The potential energy increases due to the looser arrangement of the particles. The potential energy increases due to the looser arrangement of the particles. The potential energy decreases due to the tighter arrangement of the particles.

The correct response is: The potential energy decreases due to the tighter arrangement of the particles.

As water freezes and undergoes a phase change from a liquid to a solid (ice), the particles lose energy and move closer together, resulting in a tighter arrangement. This decrease in distance between the particles corresponds to a decrease in potential energy.

An increase in thermal energy leads to _____(1 point) Responses a decrease in heat and an increase in kinetic energy until a phase change occurs. a decrease in heat and an increase in kinetic energy until a phase change occurs. an increase in heat and an increase in kinetic energy until a phase change occurs. an increase in heat and an increase in kinetic energy until a phase change occurs. an increase in heat and a decrease in kinetic energy until a phase change occurs. an increase in heat and a decrease in kinetic energy until a phase change occurs. a decrease in heat and a decrease in kinetic energy until a phase change occurs. a decrease in heat and a decrease in kinetic energy until a phase change occurs.

The correct response is: an increase in heat and an increase in kinetic energy until a phase change occurs.

As thermal energy increases, the heat of the system rises, leading to an increase in the kinetic energy of the particles. This continues until a phase change (such as melting or boiling) occurs, at which point the energy is used for the phase change rather than increasing the temperature further.

A student wants to collect data during an experiment about the transfer of kinetic energy in a sample of water and ice. Which tool will help her collect the necessary data?(1 point) Responses balance balance thermometer thermometer meter stick meter stick graduated cylinder graduated cylinder

The correct tool for the student to use in order to collect data about the transfer of kinetic energy in a sample of water and ice is a thermometer.

A thermometer measures the temperature of the substances, which is directly related to the kinetic energy of the particles. This will help the student track how the kinetic energy changes as the water and ice undergo phase changes.

Use the table to answer the question. Sample Temperature (°C) 1 98.2 2 46.0 3 100.6 4 31.4 A student records the temperature of several water samples as shown in the table. Other than the temperature, the water samples are the same. Which sample has the lowest kinetic energy? (1 point) Responses 3 3 2 2 4 4 1 1

Kinetic energy is directly related to temperature; the lower the temperature, the lower the kinetic energy of the particles in that sample.

Based on the provided temperatures:

  1. Sample 1: 98.2°C
  2. Sample 2: 46.0°C
  3. Sample 3: 100.6°C
  4. Sample 4: 31.4°C

Sample 4, with a temperature of 31.4°C, has the lowest kinetic energy.

So the correct response is: 4.

Use the picture to complete the statement. The arrows in the pot represent _____. (1 point) Responses convection convection radiation radiation waves waves conduction conduction Skip to navigation

Since I can't see the picture you are referring to, I can help explain the different types of heat transfer represented by arrows in general terms:

  • Convection: Typically represented by arrows showing the movement of fluids (like water or air) where warmer, less dense areas rise and cooler, denser areas sink.

  • Radiation: Involves the transfer of energy through electromagnetic waves and usually does not involve arrows indicating movement in a fluid.

  • Conduction: Refers to heat transfer through direct contact between solids, often illustrated with arrows showing energy transfer between touching objects.

If the arrows in the pot represent the movement of water or air, the answer would be convection. If they indicate energy being transferred through electromagnetic waves, it would be radiation. If they suggest contact between solid surfaces, it would be conduction.

Please refer to the specific context of the picture to determine the correct answer.