Question

(d) If η = 40% and TH = 427°C, what is TC, in °C?

Answer 1

`T_C=256.2^(\circ)C`

Step-by-step explanation:

Given that,

Efficiency of heat engine,
`\eta=40\%=0.4`

Temperature of hot source,
`T_H=427^(\circ)C`

We need to find the temperature of cold sink i.e.
`T_C`. The efficiency of heat engine is given by :

`\eta=1-(T_C)/(T_H)`

`T_C=(1-\eta)T_H`

`T_C=(1-0.4)* 427`

`T_C=256.2^(\circ)C`

So, the temperature of the cold sink is 256.2°C. Hence, this is the required solution.