Question

An automobile with an internal combustion engine converts the potential energy of gasoline (44 MJ/kg) into the kinetic energy of the moving pistons. If the average internal combustion engine is 10 percent efficient and 1 kg of gasoline is combusted, how much potential energy is converted into energy to run the pistons?

Answer 1

Answer:

4.4 MJ

Explanation:

We are given that an automobile with an internal combustion engine converts the potential energy of gasoline into kinetic energy of the moving piston.

1 kg of gasoline gives energy=44 MJ.

Average internal combustion engine =10 % efficient

We have to find how much potential energy is converted into energy to run the pistons.

10% of 44 =$\frac{10}{100}\times 44=4.4 MJ$

Since 10% is efficient of internal combustion.

Therefore, 4.4 MJ potential energy is converted  into energy to run the pistons.