States of Matter and Thermodynamics

What is the specific heat of water?

• 1 J/g°C

• 2 J/g°C

• 4.18 J/g°C

• 0.9 J/g°C

What is the relationship between temperature and thermal energy?

• Higher temperature means lower thermal energy

• Higher temperature means higher thermal energy

• Temperature and thermal energy are unrelated

• Thermal energy is always constant regardless of temperature

What is the term for the energy required to convert a unit mass of a liquid into vapor without a change in temperature?

• Latent heat of fusion

• Latent heat of vaporization

• Specific heat

• Thermal energy

In an adiabatic process, which of the following is true?

• Heat is exchanged with the surroundings

• No heat is exchanged with the surroundings

• Temperature remains constant

• Pressure remains constant

Which thermodynamic process occurs at constant temperature?

• Isobaric

• Isochoric

• Isothermal

• Adiabatic

What happens to the temperature of a substance during a phase change?

• It increases

• It decreases

• It remains constant

• It fluctuates

What is the term for the energy required to change a substance from solid to liquid at its melting point?

• Latent heat of fusion

• Latent heat of vaporization

• Specific heat

• Thermal energy

Which of the following is NOT a state of matter?

• Solid

• Liquid

• Gas

• Plasma

Which phase change involves the absorption of heat?

• Freezing

• Condensation

• Melting

• Sublimation

If a substance has a specific heat of 4.18 J/g°C, how much energy is required to raise the temperature of 10 grams of this substance by 5°C?

• 209 J

• 2090 J

• 418 J

• 4180 J