Question

When would 100 percent thermal efficiency be possible?

a) When the engine operates at a constant temperature.

b) When there are no energy losses in the system.

c) When the fuel used is highly efficient.

d) When the engine is in a vacuum.

Answer 1

To achieve 100 percent thermal efficiency, there should be no energy losses in the system.

Step-by-step explanation:

To achieve 100 percent thermal efficiency, option b) When there are no energy losses in the system would have to be true. To achieve 100 percent thermal efficiency, there should be no energy losses in the system.

This means that all the energy input into the system is converted into useful work output without any losses. To achieve 100 percent thermal efficiency, there should be no energy losses in the system.

However, in real-world systems, it is not possible to achieve 100 percent thermal efficiency due to various energy losses, such as friction, heat transfer to the surroundings, and incomplete combustion of fuel.