engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Thermodynamics Second Law of Thermodynamics and Entropy Clausius Inequality

A heat engine extracts heat (š‘„H) from a thermal reservoir at a temperature of 1000 K and rejects heat (š‘„L) to a thermal reservoir at a temperature of 100 K, while producing work (š‘Š). Which one of the combinations of [š‘„H, š‘„L and š‘Š] given is allowed?Ā 

1
š‘„H = 2000 J, š‘„L = 500 J, š‘Š = 1000 JĀ 
2
š‘„H = 2000 J, š‘„L = 750 J, š‘Š = 1250 J
3
š‘„H = 6000 J, š‘„L = 500 J, š‘Š = 5500 J
4
š‘„H = 6000 J, š‘„L = 600 J, š‘Š = 5500 J
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