The Total Heat Energy Produced by Propane Tank

How much heat energy can be produced by a propane tank?

1) 1890 mj
2) 1890 kj
3) 1890 j
4) 1890 mj/kg

Answer:

The total amount of heat energy that can be produced by the 42 kg propane tank, with a heat of combustion of 45 MJ/kg, is 1890 MJ.

Explanation: To find the total amount of heat energy that can be produced by the propane tank, you simply multiply the mass of the propane by its heat of combustion. Since the propane tank holds 42 kg of propane and the heat of combustion of propane is 45 MJ/kg at 55 degrees Celsius, you would calculate the total heat energy as follows:

42 kg × 45 MJ/kg = 1890 MJ

Therefore, the total amount of heat energy that can be produced by the propane tank is 1890 megajoules (MJ).