Question

A Carnot engine absorbs 750 J of heat energy from a reservoir at `137^(@)C` and rejects 500 J of heat during each cycle then the temperature of sink is
A. `0.25^(@)C`
B. `0.34^(@)C`
C. `0.44^(@)C`
D. `0.54^(@)C`

Answer 1

Correct Answer - B
Here `T_(1)=273+173=410, Q_(1)=750 J , Q_(2)=500 J`
As, `(Q_(2))/(Q_(1))=(T_(2))/(T_(1))`
`rArr T_(2) =(Q_(2))/(Q_(1))(T_(1))=(500)/(750)xx410`
=273.34 K = 237.34-273 = `0.34^(@)C`