Question

Which of the following option hold true for the above heat engine?

• A. Positive work
• B. An adiabatic process
• C. An isobaric process
• D. An isochoric process
• E. An isothermal process

Answer 1

The correct option is A Positive work

As the heat is absorbed by heat engine from source (hot reservoir) then it give some heat into work and rest is given to the sink(cold reservoir) so ($Q_1>Q_2$). Therefore net work done $W=Q_1-Q_2$ will be positive.