A Carnot's engine


A Carnot's engine working between $400 \mathrm{~K}$ and $800 \mathrm{~K}$ has a work output of $1200 \mathrm{~J}$ per cycle. The amount of heat energy supplied to the engine from the source in each cycle is :

  1. $3200 \mathrm{~J}$

  2. $1800 \mathrm{~J}$

  3. $1600 \mathrm{~J}$

  4. $2400 \mathrm{~J}$

Correct Option: , 4



$\left(\because \mathrm{W}=\mathrm{Q}_{1}-\mathrm{Q}_{2}\right)$



$\mathrm{Q}_{1}=2 \mathrm{~W}=2400 \mathrm{~J}$

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