Assignment

An engine works between two temperatures $127°\mathrm{C}$ and $227°\mathrm{C}$ then efficiency of engine is

Work done by the system during expansion is _____.

Define internal energy.

Write the limitations of the first law of thermodynamics.

During adiabatic process pressure $P,$ density $\rho$ and the ratio of specific heats $\gamma$ are related as

In isothermal process if heat of $150 \mathrm{J}$ is added to the system, then work done by gas is

Pressure versus temperature graph of two moles of Neon gas is as shown in figure. The ratio between heat absorbed and change in internal energy of gas in process $1-2$ is

Find the change in internal energy of a gas when it absorbs $100$ calorie of heat and performs $100$ joule of work.