Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for Reversible isothermal volume change Cooling of a real gas Expansion of a real gas Heating of an ideal gas Reversible isothermal volume change Cooling of a real gas Expansion of a real gas Heating of an ideal gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Near their critical temperatures, all gases occupy volumes __________ that of the ideal gas. More than Same as Less than Half More than Same as Less than Half ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The internal energy of an ideal gas is a function of its __________ only. Molecular size Pressure Temperature Volume Molecular size Pressure Temperature Volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the Heat of combustion Heat of reaction Calorific value Heat of formation Heat of combustion Heat of reaction Calorific value Heat of formation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of a reversible process (following pvn = constant), work obtained for trebling the volume (v₁ = 1 m³ and v₂ 3 m³ ) is max imum, when the value of 'n' is 1 1.66 1.44 1 1.66 1.44 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)? Ordinary vapour compression cycle Air cycle Carnot cycle Vapour compression with a reversible expansion engine Ordinary vapour compression cycle Air cycle Carnot cycle Vapour compression with a reversible expansion engine ANSWER DOWNLOAD EXAMIANS APP
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