A Carnot's engine working between 400   K and 800   K has a work output of 1200   J per…

A Carnot's engine working between 400 K and 800 K has a work output of 1200 J per cycle. The amount of heat energy supplied to the engine from the source in each cycle is:
  1. 3200 J
  2. 1800 J
  3. 1600 J
  4. 2400 J

Solution

η=T2 T1=Q2Q1=Q1-WQ1  W=Q1-Q2

400800=1-WQ1

WQ1=1-12=12

Q1=2 W=2400 J

Asked in: JEE Main 2021 (17 Mar Shift 1)

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