Chemical Engineering Thermodynamics Compound having large heat of formation is Either more or less stable ; depends on the compound More stable Less stable Not at all stable (like nascent O₂) Either more or less stable ; depends on the compound More stable Less stable Not at all stable (like nascent O₂) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The reaction A (l) R(g) is allowed to reach equilibrium conditions in an autoclave. At equilibrium, there are two phases, one a pure liquid phase of A and the other a vapor phase of A, R and S. Initially A alone is present. The number of degrees of freedom are 3 1 2 3 1 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is -RT ln 0.5 0.5 RT -2 RT ln 0.5 2 RT -RT ln 0.5 0.5 RT -2 RT ln 0.5 2 RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When a system is in equilibrium for all possible processes, the differential or finite change of entropy is < 0 None of these > 0 = 0 < 0 None of these > 0 = 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The value of gas constant 'R' is 1.987 BTU/lb. mole °R 1.987 cal/gm mole °K Both A and B Neither A nor B 1.987 BTU/lb. mole °R 1.987 cal/gm mole °K Both A and B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The number of degree of freedom for an azeotropic mixture of ethanol and water in vapour-liquid equilibrium, is 3 1 0 2 3 1 0 2 ANSWER DOWNLOAD EXAMIANS APP
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