Heat & Specific Heat

Front

What is the formula to calculate heat energy required to raise the temperature of any substance?

Back

Q = m C ∆T

Front

What does 'm' represent in the formula Q = m C ∆T?

Back

'm' represents the mass of the substance in grams.

Front

What does 'C' represent in the formula Q = m C ∆T?

Back

'C' represents the specific heat capacity of the substance in J/g°C.

Front

What does '∆T' represent in the formula Q = m C ∆T?

Back

'∆T' represents the change in temperature in degrees Celsius.

Front

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

Back

34673 J

Front

Which cup has the MOST thermal energy if all are at the same temperature?

Back

The large cup (Trenta) has the most thermal energy.

Front

What is the specific heat of water?

Back

4.18 J/g°C

Front

What is the specific heat of copper?

Back

0.39 J/g°C

Front

If 100 Joules of heat is added to 20 grams of copper, what is the temperature change?

Back

12.82 °C

Front

What does a high specific heat mean?

Back

It requires more energy to change temperature.