Why cannot the Carnot’s engine be realised in practice?

1.	Why cannot the Carnot’s engine be realised in practice?
Answer» Because of the following reasons (i) The main difficulty is that the cylinder should come in contact with the source,sink and stand again and again over a complete cycle which is very difficult to achieve in practice. (ii) The working substance should be an ideal gas however no gas fulfils the ideal gas behaviour. (iii) A cylinder with a perfectly frictionless piston cannot be realised

Answer»

Because of the following reasons

(i) The main difficulty is that the cylinder should come in contact with the source,sink and stand again and again over a complete cycle which is very difficult to achieve in practice.

(ii) The working substance should be an ideal gas however no gas fulfils the ideal gas behaviour.

(iii) A cylinder with a perfectly frictionless piston cannot be realised

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Why cannot the Carnot’s engine be realised in practice?

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