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Q.

What percentage T1 is of T2 for a l0% efficiency of a heat engine? T1, is the temperature of sink and T2 is the temperature of heat reservoir.

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a

T1=90% of T2

b

T1=T2

c

T2−90% of T1

d

T1=50% of T2

answer is A.

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Detailed Solution

Efficiency, η=T2−T1T2=1−T1T2=0.1 or T1=0.9T2
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What percentage T1 is of T2 for a l0% efficiency of a heat engine? T1, is the temperature of sink and T2 is the temperature of heat reservoir.