5.1 - Specific Heat Problems

Front

What is specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of 1 gram of a substance by 1°C.

Front

What is the formula for calculating heat energy (Q)?

Back

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

Front

What does the symbol 'm' represent in the formula Q = m * c * ΔT?

Back

The symbol 'm' represents the mass of the substance.

Front

What does the symbol 'c' represent in the formula Q = m * c * ΔT?

Back

The symbol 'c' represents the specific heat capacity of the substance.

Front

What does the symbol 'ΔT' represent in the formula Q = m * c * ΔT?

Back

The symbol 'ΔT' represents the change in temperature, calculated as final temperature minus initial temperature.

Front

How do you calculate the change in temperature (ΔT)?

Back

ΔT = final temperature - initial temperature.

Front

What is the specific heat of water?

Back

The specific heat of water is 4.18 J/g°C.

Front

If 100 Joules of heat is added to 20 grams of copper with a specific heat of 0.39 J/g°C, what is the temperature change?

Back

The temperature change (ΔT) is 12.82 °C.

Front

How much heat energy is lost when 20 g of water cools from 25°C to 20°C?

Back

The heat energy lost is 418 Joules.

Front

Calculate the energy transferred when raising the temperature of 16 kg of water by 3°C (c=4,186 J/(kg K)).

Back

The energy transferred is 2.0 * 10^5 J.