Question 2 (1 point)

A 18.6 g polystyrene foam cup containing 31.0 mL coffee changes in temperature from 19.2C to 68.4C. Calculate the heat absorbed by the cup and the coffee. Hint: coffee is made with water.

Express your answer in ___________kJ.

If you answer is 123.456, record your answer to 2 decimal place. For Example record 123.46 with no units.

Answer

Question 3 (1 point)

What mass of aluminum in a car engine will absorb 181955J of heat when the temperature rises from 23.3C to 108.2C after the car is started?

Express your answer in ____________kg.

If you answer is 123.456, record your answer to 1 decimal place. For Example record 123.5 with no units.

Answer

Question 4 (1 point)

The liquid coolant in a car engine has a specific heat capacity of 5.65 J/gC. Determine the mass of coolant that will absorb 1.00 MJ of heat during a temperature rise from 21.6 C to 135.6C.

Express your answer in _______kg.

If you answer is 123.456, record your answer to 2 decimal place. For Example record 123.46 with no units.

Answer

Question 5 (1 point)

Ina laboratory experiment, 2.16 kJ of heat flowed to a 107 g sample of a liquid solvent, causing a temperature increase from 13.54C to 26.02C. Calculate the specific heat capacity of the liquid solvent.

Express your answer in ----------------J/gC.

If you answer is 123.456, record your answer to 2 decimal place. For Example record 123.46 with no units.

Answer

Question 6 (2 points)

A human body loses about 382 kJ of heat every hour. Assuming that an average human body is equivalent to about 65.8 kg of water, what temperature decrease would this heat transfer cause?

Express your answer ______C.

If you answer is 123.456, record your answer to 2 decimal place. For Example record 123.46 with no units.