Chemical Engineering Thermodynamics Entropy of a substance remains constant during a/an __________ change. Reversible isothermal Irreversible isothermal Reversible adiabatic None of these Reversible isothermal Irreversible isothermal Reversible adiabatic None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Enthalpy of a gas depends upon its Volume Temperature Pressure Mass Volume Temperature Pressure Mass ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is not a reversible process ? Expansion of an ideal gas against constant pressure Solution of NaCl in water at 50°C None of these Atmospheric pressure vaporisation of water at 100°C Expansion of an ideal gas against constant pressure Solution of NaCl in water at 50°C None of these Atmospheric pressure vaporisation of water at 100°C ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When a gas is expanded from high pressure region to low pressure region ; temper -ature change occurs. This phenomenon is related to the Third law of thermodynamics Gibbs-Helmholtz equation Gibbs-Duhem equation Joule-Thomson effect Third law of thermodynamics Gibbs-Helmholtz equation Gibbs-Duhem equation Joule-Thomson effect ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect? Air refrigeration cycle Vapor compression cycle using expansion engine Carnot refrigeration cycle Vapor compression cycle using expansion valve Air refrigeration cycle Vapor compression cycle using expansion engine Carnot refrigeration cycle Vapor compression cycle using expansion valve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an irreversible process involving only pressure-volume work (dA)T, v >0 (dF)T, p = 0 (dF)T, p > 0 (dF)T, p (dA)T, v >0 (dF)T, p = 0 (dF)T, p > 0 (dF)T, p ANSWER DOWNLOAD EXAMIANS APP
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