Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nCv ln (T₂/T₁) is valid for Simultaneous heating and expansion of an ideal gas Cooling of a substance Reversible isothermal volume change Heating of a substance Simultaneous heating and expansion of an ideal gas Cooling of a substance Reversible isothermal volume change Heating of a substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is 300(33/7) 300(32/7) 300(33/5) 300(35/7) 300(33/7) 300(32/7) 300(33/5) 300(35/7) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At absolute zero temperature, all substances have the same Entropy None of these Heat capacity Crystalline structure Entropy None of these Heat capacity Crystalline structure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Choose the condition that must be specified in order to liquify CO₂ (triple point for CO₂ is - 57°C and 5.2 atm). Pressure must be kept below 5.2 atm Pressure and temperature must be kept below 5.2 atm. and - 57°C respectively Temperature must be kept above - 57°C Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C Pressure must be kept below 5.2 atm Pressure and temperature must be kept below 5.2 atm. and - 57°C respectively Temperature must be kept above - 57°C Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C 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 independent of path Work alone can not bring out such a change of state 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 The amount of work needed is independent of path Work alone can not bring out such a change of state 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 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The necessary condition for phase equilibrium in a multiphase system of N components is that the None of these Chemical potentials of a given component should be equal in all phases Sum of the chemical potentials of any given component in all the phases should be the same Chemical potentials of all components should be same in a particular phase None of these Chemical potentials of a given component should be equal in all phases Sum of the chemical potentials of any given component in all the phases should be the same Chemical potentials of all components should be same in a particular phase ANSWER DOWNLOAD EXAMIANS APP
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