Question

A Carnot engine working between 300 K and600K has a work out put of 800 J per cycle. The amount of heat energy supplied to the engine from the source in each cycle is –

• A. 800 J
• B. 1600 J
• C. 3500 J
• D. 6400 J

Answer 1

Answer: (B)

1600 J

Answer 2

$\eta$ = 1 – $\frac{T_{L}}{T_{H}}$ Ž $\frac{W}{Q_{1}}$ = 1 – $\frac{T_{L}}{T_{H}}$

$\frac{800}{Q_{1}}$ = 1 – $\frac{1}{2}$ = $\frac{1}{2}$

\ Q₁ = 1600 J