In Joule-Thomson porous plug experiment, the Entire apparatus is exposed to surroundings Enthalpy does not remain constant None of these Temperature remains constant TRUE ANSWER : ? YOUR ANSWER : ?
In an ideal solution, the activity of a component equals its Mole fraction Partial pressure Fugacity at the same temperature and pressure None of these TRUE ANSWER : ? YOUR ANSWER : ?
As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T) approaches Infinity None of these Unity Zero TRUE ANSWER : ? YOUR ANSWER : ?
Gibbs-Duhem equation relates composition in liquid phase and the __________ at constant temperature & pressure. Partial pressure A, B, and C Activity co-efficient Fugacity TRUE ANSWER : ? YOUR ANSWER : ?
Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is Negative Zero Positive Infinity TRUE ANSWER : ? YOUR ANSWER : ?
The extensive properties are None of these Free energy, entropy and enthalpy Volume, mass and number of moles Both A and B TRUE ANSWER : ? YOUR ANSWER : ?
Linde gas liquefaction process employs cooling At constant pressure By expansion in an engine By throttling None of these TRUE ANSWER : ? YOUR ANSWER : ?
Claussius-Clayperon equation gives accurate result, when the Vapour pressure is relatively low and the temperature does not vary over wide limits Vapour obeys the ideal gas law and the latent heat of vaporisation is constant Volume in the liquid state is negligible compared with that in the vapour state All of these TRUE ANSWER : ? YOUR ANSWER : ?
The main feature of Carnot refrigeration cycle is that, it Does not need the addition of external work for its functioning Accomplishes the reverse effect of the heat engine Transfers heat from high temperature to low temperature None of these TRUE ANSWER : ? YOUR ANSWER : ?