The efficiency of the reversible heat engine is ηr and that of irreversible heat engine is ηl. Which of the following relations is correct?

Question

The efficiency of the reversible heat engine is ηr and that of irreversible heat engine is ηl. Which of the following relations is correct? (A) ηr>ηl (B) ηr<ηl (C) ηr ge ηl (D) ηr>1 and ηl<1

Tardigrade Admin · Accepted Answer

The efficiency of reversible engine is always greater than that of irreversible engine. In case of irreversible engine, a part of the energy may be dissipated against friction, etc.

Q. The efficiency of the reversible heat engine is $η_{r}$ and that of irreversible heat engine is $η_{l}$ . Which of the following relations is correct?

$η_{r} > η_{l}$

$η_{r} < η_{l}$

$η_{r} \geq η_{l}$

$η_{r} > 1$ and $η_{l} < 1$

The efficiency of reversible engine is always greater than that of irreversible engine. In case of irreversible engine, a part of the energy may be dissipated against friction, etc.

Q. The efficiency of the reversible heat engine is ηr​ and that of irreversible heat engine is ηl​. Which of the following relations is correct?

ηr​>ηl​

ηr​<ηl​

ηr​≥ηl​

ηr​>1 and ηl​<1

The efficiency of reversible engine is always greater than that of irreversible engine. In case of irreversible engine, a part of the energy may be dissipated against friction, etc.

Q. The efficiency of the reversible heat engine is $η_{r}$ and that of irreversible heat engine is $η_{l}$ . Which of the following relations is correct?

$η_{r} > η_{l}$

$η_{r} < η_{l}$

$η_{r} \geq η_{l}$

$η_{r} > 1$ and $η_{l} < 1$