Question

Constants I Periodic Table A refrigerator using helium gas operates on the reversed cycle shown in the following figure. Assume that T1 -18 °C and T2 =-78 °C(Figure 1) Figure く 1of1 p (kPa) Adiabats 150 V (cm) 0 20 40 60 80 100
What is the refrigerators coefficient of performance? Express your answer using two significant figures. you need s hotrecoghized. Review a lis acceptable units. ANSWER 5: Deduction:-3% K 1.2 P 2000J Previous Answers ANSWER 6: Deduction:-3% Correct P- 2006 Part EB ANSWER 7: Deduction:-3% What is the refrigerators power input if it operates at 64 cycles per second? Express your answer to two significant figures and include the appropriate P: 2006 w ANSWER 8 Deduction-3% P: 470 W P- 470 Return to Current Item Submit
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