Question

8)A refrigerator absorbs 500 J of heat from a cold reservoir and releases 800 J to a hot reservoir. Assume that the heat-engine statement of the second law of thermodynamics is false, and show how a perfect engine working The Second Law of Thermodynamics 1897 with this refrigerator can violate the refrigerator statement of the second law of thermodynamics

Answer 1

Giren, for a refrigerator, Heat absorbed , a = 500] Heat rejected , Q = good To contradict the heat engine statement - 2005 YR of which convent second law of thermasdyramics, says, no heat engine can all the available energy into use are To = 5005 7 T useful work. Actually, win = 0,-, = 200-500 = 300 J To violate this win = Q = 800] of secord low of → Apply this to refrigerator statement thermodynamics. ie., - Heat on its own cannot travel low temp. to body at high temp. from a body at R if win = 3600J , then we can say we are giving good of work input to extract the heat toom cold aservoir - Q₂ + win = Q, But, if wen = goo] » (500 + 800) & 800 which is violating refrigeration statement of second low of thermodynamics.