An ideal heat engine can be 100% efficient if its sink is at

Why is a heat engine never 100% efficient ?

A fritionless heat engine can be 100% efficient only if its exhaust temperature is

A frictionless heat engine can be 100% efficient only if its exhaust temperature is

Which law of thermodynamics implies that no heat engine can be 100% efficient?

Why can't a machine be 100% efficient?

Even carnot heat engine cannot give 100% efficiency. Explain why OR can you design a heat engine of 100% efficiency? Explain ypur answer. OR A heat engine with 100% efficiency is only a theoretical possibility. Explain.

Even carnot heat engine cannot give 100% efficiency. Explain why OR can you design a heat engine of 100% efficiency? Explain ypur answer. OR A heat engine with 100% efficiency is only a theoretical possibility. Explain.

Can you design a heat engine of 100% efficiency. Justify your answer.