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Consider a heat engine as shown in (figu...

Consider a heat engine as shown in (figure). `Q_(1) and Q_(2)` are heat added to heat bath `T_(1)` and heat taken from `T_(2)` one cycle of engine. `W` is the mechanical work done on the engine.

If `Wgt0`, then possibillities are:

A

(i) and (ii)

B

(i) and (iii)

C

(ii) and (iii)

D

(ii) and (iv)

Text Solution

Verified by Experts

The correct Answer is:
B
Here the given figure reprsents the working of a refrigeratiro
`Q_(1)=Q_(2)+W`
If ,`Wgt 0`, then `Q_(1)gtQ_(2)gt0`
If `Q_(2)` is negative `Q_(1)` is also negative
`therefore Q_(2)ltQ_(1)lt0`
Hence (iii) is also correct.
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