a) Apply first law of thermodynamics to obtain the relation \( C_p - C_v = R \) , where symbols have their usual meanings. b) A petrol engine…
Class 12 Physics · 2083 · Solved Question with Answer
a) Apply first law of thermodynamics to obtain the relation \( C_p - C_v = R \), where symbols have their usual meanings.
b) A petrol engine consumes \( 10\text{kg} \) of petrol in one hour. The calorific value of petrol is \( 1.14 \times 10^4\text{ calg}^{-1} \). The power of the engine is \( 30\text{kW} \). Calculate the efficiency of the engine.