Chapter 4, Problem 4STP

To determine

Tochoose: The correct option.

Answer to Problem 4STP

In a car’s engine, chemical energy is converted to thermal, which is then converted to mechanical energy.

Explanation of Solution

Introduction:

According to Conservation of Energy, “the total energy of a system can neither be created nor destroyed. It changes from one form to another”.

In a car’s engine, the gasoline stored has chemical potential energy.The engine transforms this chemical potential energy into thermal energy and then further into mechanical energy for the car’smotion. The car’s engine getting hot is an evidence that chemical potential energy is converted to thermal energy, much of which is never converted to mechanical energy.

Conclusion:

In a car’s engine, chemical energy is converted to thermal, which is then converted to mechanical energy.