Answers25-26 CHEMISTRY IN THE EARTH SYSTEM S1Temperature and Heat

Temperature and Heat Answers

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1
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Which best describes the relationship between heat, internal energy, and thermal energy?

A
Internal energy is heat that flows, and heat is the part of thermal energy that can be transferred.
B
Internal energy is thermal energy that flows, and thermal energy is the part of heat that can be transferred.
C
Thermal energy is heat that flows, and heat is the part of internal energy that can be transferred.
D
Heat is thermal energy that flows, and thermal energy is the part of internal energy that can be transferred.
2
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In the heat equation, what does c represent?

A
heat required to raise the temperature
B
specific heat of the substance
C
mass of the substance
D
change in temperature
3

Zoe finds that the temperature of a substance is 12 degrees Celsius. What does this tell Zoe about the substance?

A
Its internal energy is less than 12 degrees Celsius.
B
Its average kinetic energy is 12 on the Celsius scale.
C
It has a potential energy of 12 degrees Celsius.
D
It has a specific heat of 12 on the Celsius scale.
4

Copper has a specific heat of 0.386 J/g°C. How much heat is required to increase 5.00 g of copper from 0.0°C to 10.0°C?

A
3.86 J
B
5.00 J
C
10.0 J
D
19.3 J
5

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.

A
The water in pot X has more kinetic energy than the water in pot Y.
B
The water in pot Y has more kinetic energy that 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 Y has a higher specific heat than the water in pot X.
6

What are the units for measuring specific heat?

A
degrees Celsius per gram
B
joules per degrees Celsius
C
joules per gram degree Celsius
D
degrees Celsius per joule gram
7

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) Celsius.

Answer not available
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 number of particles in the substance.
C
The substance’s specific heat.
D
The substance’s temperature.
9

Which best compares kinetic energy and temperature?

A
Kinetic energy is energy of motion, while temperature is a measure of that energy in substances.
B
Temperature is energy of motion, while kinetic energy is a measure of that energy in substances.
C
Kinetic energy is internal transferable energy, while temperature is a measure of that energy in substances.
D
Temperature is internal transferable energy, while kinetic energy is a measure of that energy in substances.
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 particles have less kinetic energy.
B
Its particles have more kinetic energy.
C
Its specific heat increases.
D
Its specific heat decreases.

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