Solve for Part A and B? (20%) Problem 5: A cyclical heat engine has 22 % efficie

Question

Solve for Part A and B?

(20%) Problem 5: A cyclical heat engine has 22 % efficiency with 6.4 × 109 J of heat input. 50% Part (a) What is the work output of the engine in J? Grade Summary Deductions Potential 0% 100% Submissions sin cotan asinO coS asin0 atan)acotanOsinh( tan() | | ( acos0 Attempts remaining: 5 (10% per attempt) detailed view coshOtanhO cotnh0 0 END Degrees O Radians ELCLEAR Submit Hint I give up! Hints: 0% deduction pe r hint. Hints remaining: 2 Feedback: 0% deduction per feedback.

Explanation / Answer

Apologies for forgetting to answer the second part. Doing it now.

a) Efficiency = Work done/Heat input

0.22 = W/6.4*10^9

=> W = 1.408*10^9J

b) Work done = Heat input - Heat transferred

=> Heat transferred = 6.4*10^9-1.408*10^9 = 4.992*10^9J

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