1. A Carnot engine operates between a hot reservoir at 450 K and a coldreservoir at 300 K. If the engine absorbs 200 kJ of energy from the hot reservoir, howmuch work will it produce?(a) 200 kJ (b) 67 kJ (c) 133 kJ (d) 100 kJ (e) 150 kJl colution from2. Which of the following is always positive for a spontaneous process?(a) AStot (b) ASsys (c) ASsurr (d) AH (e) both a and b3. Which of the following equations is incorrect?(a)= T (b)= SOP= VaU(e)= -P(c)= -S(d)ƏP

Answered: 1. A Carnot engine operates between a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

1. A Carnot engine operates between a hot reservoir at 450 K and a cold
reservoir at 300 K. If the engine absorbs 200 kJ of energy from the hot reservoir, how
much work will it produce?
(a) 200 kJ (b) 67 kJ (c) 133 kJ (d) 100 kJ (e) 150 kJ
l colution from
2. Which of the following is always positive for a spontaneous process?
(a) AStot (b) ASsys (c) ASsurr (d) AH (e) both a and b
3. Which of the following equations is incorrect?
(a)
= T (b)
= S
OP
= V
aU
(e)
= -P
(c)
= -S
(d)
ƏP

Expert Solution

Step 1

$T_{h o t} = 450 K T_{c o l d} = 300 K E f f i c i e n c y = 1 - (T_{c o l d} / T_{h o t}) E f f i c i e n c y = 1 - (300 / 450) E f f i c i e n c y = 0.333$

Heat absorbed = 200 KJ

Work done = efficiency * heat absorbed

= 0.333 * 200 KJ

= 67 KJ

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