List of top Physics Questions on Thermodynamics asked in AP EAMCET

A Carnot engine operates between a source and a sink. The efficiency of the engine is \(40\%\) and the temperature of the sink is \(27^\circ\text{C}\). If the efficiency is to be increased to \(50\%\), then the temperature of the source must be increased by

A car engine has a power of \(20 \, kW\). The car makes a roundtrip of \(1\) hour. If the thermal efficiency of the engine is \(40\%\) and the ambient temperature is \(300 \, K\), the energy generated by fuel combustion is