Question

A heat engine uses thermal energy that flows from a heat source with a temperature of 325k to a cold sink that has the temperature of 135k what is the efficiency of the heat engine

Answer 1

Efficiency = 58.5%

Step-by-step explanation:

Given the following data;

Temperature of the cold sink, Tc = 135K

Temperature of the hot sink, Th = 325K

The efficiency of an engine is given by:

Efficiency = [1 - (Tc/Th)] * 100

Where;

• Tc is the temperature of the cold sink.
• Th is the temperature of the heat source.

Substituting into the equation, we have;

Efficiency = [1 - (135/325)] * 100

Efficiency = (1 - 0.4154) * 100

Efficiency = 5.85 * 100

Efficiency = 58.5%

Therefore, the efficiency of the heat engine is 58.5 percent.