Chapter 5.3, Problem 17R

To determine

To Explain: The thermal energy of an isolated system changes with respect to time while keeping mechanical energy as constant.

Answer to Problem 17R

Thermal energy of an isolated system will change according to law of thermodynamics.

Explanation of Solution

Introduction:

According to the law of thermodynamics, the thermal energy cannot be created and destroyed. It gets transfer with time.

The thermal energy of an isolated system varies with time as the energy transfer according to the law of thermodynamics. The thermal energy transfers from high energy level to low energy level with time while the mechanical energy as constant. Finally, all the thermal energy dissipated from the system.

Conclusion:

Hence, the thermal energy of an isolated system changes with time.