Kinetic energy practice

Question 1

Calculate the quantity of heat required to warm 250 mL of water from 22.0°C to 98.0°C in an electric kettle.
Note: water has a density of 1 g/mL ∴1 mL has a mass of 1 g.

Answer 1

Question 2

A 35.0 g polystyrene foam cup containing coffee changes in temperature from 21.0°C to 55.0°C. Calculate the heat absorbed by the cup.

Answer 2

Question 3

What mass of aluminum in a car engine will absorb 1.00 × 10⁶ J of heat when the temperature rises from 22°C to 102°C after the car is started?

Answer 3

Question 4

The liquid coolant in a car engine has a specific heat capacity of 3.88 J/g°C. Determine the mass of coolant that will absorb 1.00 MJ of heat during a temperature rise from 22°C to 102°C.

Answer 4

Question 5

In a laboratory experiment, 2.00 kJ of heat flowed to a 100 g sample of a liquid solvent, causing a temperature increase from 15.40°C to 21.37°C. Calculate the specific heat capacity of the liquid solvent.

Answer 5