The fuel value of natural gas is 54.0 kJ/g.How much heat results from the combustion of 2.84 kg of natural gas? (Watch your units!)

Question

Quizplus · Accepted Answer

To calculate the heat resulting from the combustion of 2.84 kg of natural gas, we need to first convert the mass to grams:

2.84 kg = 2.84 x 1000 g/kg = 2840 g

Next, we can use the fuel value of natural gas to calculate the heat:

Heat = mass x fuel value

Heat = 2840 g x 54.0 kJ/g

Heat = 153,360 kJ

Therefore, the answer is B, 153,000 kJ (rounded to three significant figures).

The Fuel Value of Natural Gas Is 54