Chemical Engineering Thermodynamics Which of the following has the least thermal efficiency? Otto engine Carnot engine Diesel engine Steam engine Otto engine Carnot engine Diesel engine Steam engine ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At absolute zero temperature, all substances have the same None of these Heat capacity Crystalline structure Entropy None of these Heat capacity Crystalline structure Entropy ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an exothremic reaction Only internal energy change (ΔE) is negative Only enthalpy change (ΔH) is negative Both ΔH and ΔE are negative Enthalpy change is zero Only internal energy change (ΔE) is negative Only enthalpy change (ΔH) is negative Both ΔH and ΔE are negative Enthalpy change is zero ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions. The amount of work needed is path dependent More information is needed to conclude anything about the path dependence or otherwise of the work needed Work alone can not bring out such a change of state The amount of work needed is independent of path The amount of work needed is path dependent More information is needed to conclude anything about the path dependence or otherwise of the work needed Work alone can not bring out such a change of state The amount of work needed is independent of path ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for Heating of an ideal gas Expansion of a real gas Reversible isothermal volume change Cooling of a real gas Heating of an ideal gas Expansion of a real gas Reversible isothermal volume change Cooling of a real gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope? 3 2 1 3 2 1 ANSWER DOWNLOAD EXAMIANS APP
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