Question

A Carnot engine working between 300 K and 600 K has a work output of 800 joules per cycle. The amount of heat energy supplied from the source to the engine in each cycle is

• A. 6400 joule
• B. 1600 joule
• C. 3200 joule
• D. 800 joule

Answer 1

Answer: (B)

1600 joule

Answer 2

: Efficiency $=\frac{output}{input}=1-\frac{{{T}_{2}}}{{{T}_{1}}}$ Or $\frac{800}{input}=1-\frac{300}{600}\Rightarrow \frac{800}{input}=\frac{1}{2}$ Or $input=1600J$