Answer to Question #265692 in Physics for muzondiwa

Question

An engine operates between 1,200oC (T2) and

200oC (T1), and Step 1 (isothermal expansion) involves an expansion from 6x10-5Nm-2 to

4x104Nm-2. The working substance is one mole of an ideal gas.

i. Calculate the efficiency of the heat engine.

ii. Calculate heat absorbed in Step 1.

iii. Calculate the amount of heat rejected in Step 3 (isothermal compression). [5marks]

Fig 1:

Answer 1

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