A Carnot engine whose efficiency is 50% has an exhaust temperature

Home » Thermal Physics » Thermodynamics » Question

A Carnot engine whose efficiency is 50% has an exhaust temperature of 500 K. If the efficiency is to be 60% with the same intake temperature, the exhaust temperature must be (in K)

1. 800
2. 200
3. 400
4. 600

Correct Option: C

η = 1 -	T₂	or	50	= 1 -	500
	T₁		100		T₁

⇒ T₁ = 1000 K

Also ,	60	= 1 -	T₂	⇒ T₂ = 400 K
	100		1000