Quiz 1: Heat Capacity and Specific Heat Quiz

What is the heat capacity of an object?

• The amount of heat necessary to raise the temperature by one degree Celsius

• The mass of the object

• The volume of the object

• The color of the object

What is specific heat?

• The temperature at which a substance freezes

• The heat capacity of one mole of a substance

• The heat capacity of one gram of a substance

• The temperature at which a substance boils

What is the specific heat of water?

• 6.75 joules per gram degrees Celsius

• 8.90 joules per gram degrees Celsius

• 2.50 joules per gram degrees Celsius

• 4.18 joules per gram degrees Celsius

What is the molar heat capacity of water?

• 125.8 joules per mole degree Celsius

• 100.5 joules per mole degree Celsius

• 50.0 joules per mole degree Celsius

• 75.2 joules per mole degree Celsius

How much heat is necessary to warm 250 grams of water from 22 degrees Celsius to 98 degrees Celsius?

• 150,000 joules

• 50,000 joules

• 79,420 joules

• 100,000 joules

What is the specific heat of aluminum?

• 4.18 joules per gram degrees Celsius

• 2.50 joules per gram degrees Celsius

• 0.45 joules per gram Kelvin

• 0.90 joules per gram Kelvin

What is the specific heat of iron?

• 0.90 joules per gram Kelvin

• 4.18 joules per gram degrees Celsius

• 2.50 joules per gram degrees Celsius

• 0.45 joules per gram Kelvin

What can be inferred from the specific heat comparison between iron and aluminum?

• Iron has a lower specific heat than aluminum

• Aluminum has a lower specific heat than iron

• Both have the same specific heat

• Specific heat does not affect temperature change

What does a higher specific heat indicate for a substance?

• The substance easily changes temperature

• The substance is a poor conductor of heat

• The substance is resistant to temperature change

• The substance is a good conductor of heat

What is the molar mass of water?

• 18.0 grams per mole

• 4.18 joules per gram degrees Celsius

• 75.2 joules per mole degree Celsius

• 298 Kelvin