Thermodynamics ...

The molar heat capacity of oxygen gas at $$STP$$ is nearly $$2.5\ R$$. As the temperature is increased, it gradually increases and approaches $$3.5\ R$$. The most appropriate reason for this behaviour is that at high temperature :

In a given process for ideal gas, $$dW=0$$ and $$dH > 0$$. Then for the gas :

During an isothermal expansion of an ideal gas :

An ideal gas undergoes an isothermal change in volume with pressure then:

The table given below shows two different processes. Calculate the unknown values  with help of first law of thermodynamics. All the data are in joule :

In the case of saturated vapour :

The first law of thermodynamic is essentially a statement:

When a gas is allowed to expand suddenly into a vacuum chamber, then

If in an adiabatic process, the pressure is increased by $$2/3\%$$, then volume decreased by $$\left (Assume\ \ \dfrac {C_P}{C_V}=\dfrac {3}{2}\right)$$ :

The first law of thermodynamics is a statement of