Heat Practice

Front

What is specific heat?

Back

The amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

Front

What is the formula to calculate heat (q)?

Back

q = m * c * ΔT, where m is mass, c is specific heat, and ΔT is the change in temperature.

Front

What does a high specific heat indicate about a substance?

Back

It requires more energy to change the temperature of the substance.

Front

How much heat is released when a 10 g piece of aluminum cools from 100.0°C to 50.0°C?

Back

110 J.

Front

What is heat capacity?

Back

The amount of heat required to change the temperature of a substance by one degree Celsius.

Front

How much heat is needed for 2474 grams of lead with a heat capacity of 34 J/g?

Back

84,120 J.

Front

What is the specific heat of aluminum?

Back

0.21 J/g°C.

Front

If 123 J of heat is used, how many grams of copper can be melted with a heat capacity of 24.47 J/mol?

Back

319 grams.

Front

What is the relationship between mass and heat in the formula q = m * c * ΔT?

Back

Heat (q) is directly proportional to mass (m); as mass increases, heat increases if specific heat and temperature change remain constant.

Front

What happens to the temperature of a substance when it absorbs heat?

Back

The temperature of the substance increases.