Changes in Temperature & Heat Capacity Video Lessons

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Problem: Sort the phase change scenarios according to the direction of the heat flow in each case.PART 1Categories:-Heat is transferred from the water to the surroundings when...-Heat is transferred to the water from the surroundings when...-No net of heat occurs when...Options:-...a cloud of steam condenses into liquid water.-...a block of ice melts.-...a puddle of water evaporates.-...a block of ice sublimates into water vapor.-...a puddle of water freezes into ice.PART 2Considering your answers above, what would be the effect of spraying liquid water on fruit trees before a frost?a) It would tend to make the fruit freeze soiner.b) It would help to prevent the fruit from freezing.c) It would have no effect in the fruit.

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PART 1

-Heat is transferred from the water to the surroundings when...

-...a cloud of steam condenses into liquid water.

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Problem Details

Sort the phase change scenarios according to the direction of the heat flow in each case.

PART 1
Categories:
-Heat is transferred from the water to the surroundings when...
-Heat is transferred to the water from the surroundings when...
-No net of heat occurs when...

Options:
-...a cloud of steam condenses into liquid water.
-...a block of ice melts.
-...a puddle of water evaporates.
-...a block of ice sublimates into water vapor.
-...a puddle of water freezes into ice.

PART 2
Considering your answers above, what would be the effect of spraying liquid water on fruit trees before a frost?

a) It would tend to make the fruit freeze soiner.
b) It would help to prevent the fruit from freezing.
c) It would have no effect in the fruit.


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