91Ó°ÊÓ

The first law of thermodynamics is the law of (a) enthalpy (b) free energy (c) conservation of energy (d) none of these

The mathematical form of the first law of thermodynamics is (a) \(d q=d U=d w\) (b) \(d q=d U-d w\) (c) \(d U=d q+d w\) (d) none of these

Standard state refers to (a) one atmosphere pressure and \(25^{\circ} \mathrm{C}\) temperature (b) one atmosphere pressure and \(100^{\circ} \mathrm{C}\) temperature (c) one atmosphere pressure and \(0^{\circ} \mathrm{C}\) temperature (d) none of these

A process during which there is no heat change is called (a) an adiabatic process (b) reversible process (c) irreversible process (d) none of these

A process in which a system comes to its initial position after a series of operations is called (a) reversible (b) cyclic (c) adiabatic (d) non of these

A process which proceeds infinitesimally slowly is called (a) irreversible (b) reversible (c) isothermal (d) adiabatic

The heat content of a system is called (a) internal energy (b) enthalpy (c) free energy (d) entropy

For the reaction \(\mathrm{N}_{2}+3 \mathrm{H}_{2} \rightleftharpoons 2 \mathrm{NH}_{3} q_{P}\) is equal to (a) \(q_{V}-2 R T\) (b) \(q_{V}+2 R T\) (c) \(q_{V}+R T\) (d) \(q_{V}-R T\)

The least random state of a water system is (a) ice (b) liquid water (c) steam (d) equal randomness in all

Identify the intensive quantities from the following: (a) Enthalpy (b) Temperature (c) Volume (d) Refractive index.