An iron block with a temperature of 250 degrees Celcius is placed into a container of water with a temperature of 50 degrees Celcius. Which statement best describes what will be observed in this experiment?

Question

(1 point)
Responses

Heat will flow from the iron block to the water until both are 50 degrees Celcius.
Heat will flow from the iron block to the water until both are 50 degrees Celcius.

Heat will flow from the iron block to the water until both are 250 degrees Celcius.
Heat will flow from the iron block to the water until both are 250 degrees Celcius.

Heat will flow from the iron block to the block to the water until both reach a temperature somewhere between 50 degrees Celcius and 25 degrees Celcius.
Heat will flow from the iron block to the block to the water until both reach a temperature somewhere between 50 degrees Celcius and 25 degrees Celcius.

Heat will flow from the water to the iron block until both are at the temperature of the container.

Answer 1

The correct statement is:

Heat will flow from the iron block to the water until both reach a temperature somewhere between 50 degrees Celsius and 250 degrees Celsius.

This is because heat transfer occurs from the hotter object (the iron block) to the cooler object (the water) until thermal equilibrium is reached, meaning they will end up at a temperature that is between the two initial temperatures.

Answer 2

A student drops substance A into substance B. What will happen?(1 point)
Responses

Substance A will become warmer as heat flows from substance A to substance B.
Substance A will become warmer as heat flows from substance A to substance B.

After some time passes, the substances will reach the same temperature.
After some time passes, the substances will reach the same temperature.

Both substances will reach 25°C due to heat exchange.
Both substances will reach 25°C due to heat exchange.

Both substances will reach 50°C due to heat exchange.

Answer 3

The correct response is:

After some time passes, the substances will reach the same temperature.

This describes the general principle of thermal equilibrium, where heat will flow between the two substances until they reach the same temperature, which could be above or below the original temperatures of the substances, depending on their specific heat capacities and the amounts of each substance. The other options incorrectly specify final temperatures (25°C or 50°C) without knowing the initial conditions and specific properties of the substances involved.

Answer 4

A student arranges two blocks of copper next to each other so that they are touching. At the start of the experiment, Block 1’s temperature is 40°C, and Block 2’s temperature is 20°C. The two blocks remain in an isolated system until all heat energy is transferred. Which picture correctly shows the blocks’ ending temperatures?(1 point)

Answer 5

In this scenario, when two blocks of copper (or any two objects) come into contact, heat will flow from the hotter object (Block 1 at 40°C) to the cooler object (Block 2 at 20°C) until they reach thermal equilibrium. The ending temperatures of both blocks will be the same and will be somewhere between 20°C and 40°C.

Since I cannot see pictures, I can describe what you should look for:

• The correct picture will show both blocks at a temperature that is between 20°C and 40°C.

If the picture shows both blocks at the same temperature that is higher than 20°C and lower than 40°C (for example, around 30°C), that would be the correct choice.

Answer 6

Its only
70 C and 70 C
30 C and 30 C
50 C and 20 C
20 C and 50 C

Answer 7

Based on the options you've provided, the correct choice would be:

30°C and 30°C.

This option reflects the principle of thermal equilibrium, where the two blocks (initially at 40°C and 20°C) will reach a common temperature after heat exchange. Since they are in an isolated system, they will eventually stabilize at a temperature that is the average of the two initial temperatures, which would be between 20°C and 40°C—in this case, 30°C.

The other options (70°C and 70°C, 50°C and 20°C, and 20°C and 50°C) do not reflect the thermal equilibrium that would occur in this situation.

Answer 8

When you add cold milk and hot chocolate, they will slowly blend as the cooler liquid mixes with the warmer liquid. Eventually, the heat will be spread out evenly through the entire liquid. Which statement best explains why this happens?(1 point)
Responses

Cold liquids rise and hot liquids sink making the liquids mix.
Cold liquids rise and hot liquids sink making the liquids mix.

Heat always moves from areas of higher temperature to areas of lower temperature.
Heat always moves from areas of higher temperature to areas of lower temperature.

The molecules of the two liquids form chemical bonds to spread energy.
The molecules of the two liquids form chemical bonds to spread energy.

The liquids attract each other because the densities of the liquids are the same.

Answer 9

The correct statement that best explains why the heat will be spread out evenly through the entire liquid when cold milk is added to hot chocolate is:

Heat always moves from areas of higher temperature to areas of lower temperature.

This statement accurately describes the process of heat transfer. When the hot chocolate (higher temperature) and cold milk (lower temperature) are mixed, heat flows from the warmer chocolate to the cooler milk until they reach thermal equilibrium. The other statements do not correctly describe the physical principles at play in this scenario.