Answers25-26 CHEMISTRY IN THE EARTH SYSTEM S1Temperature and Heat

Temperature and Heat Answers

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1
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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
2
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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
3

Temperature is a measure of the average energy of particles in a substance.

Answer not available
4

Water has a specific heat of 4.186 J/g°C, and ethanol has a specific heat of 2.450 J/g°C. Based on this information, which best compares water and ethanol?

A
It requires more heat to raise the temperature of a gram of ethanol by 1°C.
B
There are more molecules in a gram of water.
C
Ethanol has a lower formula mass.
D
Water has more protons and neutrons in its nuclei.
5

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.
7

Elements with low specific heat values have which characteristic?

A
low atomic mass
B
high thermal energy
C
low kinetic energy
D
low number of atoms per gram
8

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.
9

Jared made a study chart about heat, temperature, kinetic energy, and thermal energy.

Question illustration
A
Add “potential energy” to the description of temperature.
B
Switch the term “heat” with the term “thermal energy.”
C
Change kinetic energy description from “energy of motion” to “stored energy.”
D
Replace the term “temperature” with “internal energy.”
10

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.

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