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The temperature of sink of Carnot engine...

The temperature of sink of Carnot engine is `27^(@)C`. Efficiency of engine is `25%`. Then temeperature of source is

A

`227^@C`

B

`327^@C`

C

`127^@C`

D

`27^@C`

Text Solution

Verified by Experts

The correct Answer is:
C
`eta=1-(T_2)/(T_1)=1/4=1-((27+273))/(T_(1))`
`implies (300)/(T_1)=3/4`
`implies T_1=400 K = 127^@C`.
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