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Temperature and Heat — Quiz Answers

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Water has a specific heat of 4 point 1 8 6 the fraction with numerator cap j and denominator g times degree C , and ethanol has a specific heat of 2 point 4 5 0 the fraction with numerator cap j and denominator g times degree C Based on this information, which best compares water and ethanol?

A
Water has more protons and neutrons in its nuclei.
B
There are more molecules in a gram of water.
C
It requires more heat to raise the temperature of a gram of ethanol by .
D
Ethanol has a lower formula mass.
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What are the units for measuring specific heat?

A
joules per gram degree Celsius
B
joules per degrees Celsius
C
degrees Celsius per gram
D
degrees Celsius per joule gram
3

Ed records the temperature of two pots of water. The pots are the same size and material. Pot X has a temperature of 56 degrees Fahrenheit, and pot Y has a temperature of 49 degrees Fahrenheit. What conclusion can Ed make about the pots of water?

A
The water in pot Y has more kinetic energy that the water in pot X.
B
The water in pot Y has a higher specific heat than the water in pot X.
C
The water in pot X has a higher specific heat than the water in pot Y.
D
The water in pot X has more kinetic energy than the water in pot Y.
5

Val warms up some soup on the stove. Assuming no phase change has occurred, what effect does warming have on the soup?

A
Its particles have less kinetic energy.
B
Its specific heat decreases.
C
Its specific heat increases.
D
Its particles have more kinetic energy.
6

When the kinetic energy of particles in a substance decreases, what also decreases?

A
The size of the particles in the substance.
B
The number of particles in the substance.
C
The substance’s temperature.
D
The substance’s specific heat.
7

Which best describes the relationship between heat, internal energy, and thermal energy?

A
Heat is thermal energy that flows, and thermal energy is the part of internal energy that can be transferred.
B
Thermal energy is heat that flows, and heat is the part of internal energy that can be transferred.
C
Internal energy is heat that flows, and heat is the part of thermal energy that can be transferred.
D
Internal energy is thermal energy that flows, and thermal energy is the part of heat that can be transferred.
8

When the kinetic energy of particles in a substance decreases, what also decreases?

A
The size of the particles in the substance.
B
The substance’s specific heat.
C
The substance’s temperature.
D
The number of particles in the substance.
9

Val warms up some soup on the stove. Assuming no phase change has occurred, what effect does warming have on the soup?

A
Its specific heat decreases.
B
Its specific heat increases.
C
Its particles have more kinetic energy.
D
Its particles have less kinetic energy.
10

Nya has a cup of hot tea that she lets cool down for several minutes. What effect does cooling have on the tea?

A
Its specific heat increases.
B
Its specific heat decreases.
C
Its particles have more kinetic energy.
D
Its particles have less kinetic energy.

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Temperature and Heat — Quiz Answers — Physics