Heat & Specific Heat

Front

What is the formula for calculating change in temperature using the heat equation?

Back

Q / (m Cp) = ∆T

Front

True or False: The specific heat is the amount of energy needed to raise the temperature one degree Celsius of 1 gram of a substance.

Back

True

Front

What is the specific heat of a metal if a 30.00 g piece changes from 25.0 °C to 35.0 °C when it absorbs 350.0 J of energy?

Back

1.17 J/g°C

Front

What is the temperature change (∆t) when 100 Joules of heat (Q) is added to 20 grams of copper with a specific heat (c) of 0.39 J/g °C?

Back

12.82 °C

Front

Calculate the heat absorbed by 105.0 grams of water when heated from 20.0°C to 99.0°C. The specific heat of water is 4.18 J/g•°C.

Back

34673 J

Front

Define specific heat capacity.

Back

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

Front

What is the unit of specific heat?

Back

J/g°C (Joules per gram per degree Celsius)

Front

If a substance has a high specific heat, what does that imply about its temperature change when heat is added?

Back

It implies that the substance will experience a smaller temperature change compared to substances with lower specific heat when the same amount of heat is added.

Front

What is the relationship between mass, specific heat, and heat absorbed?

Back

Q = m * c * ∆T, where Q is heat absorbed, m is mass, c is specific heat, and ∆T is the change in temperature.

Front

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

Back

The temperature of the substance increases, assuming no phase change occurs.