Chemical Engineering Thermodynamics The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance. Heating Simultaneous pressure & temperature change Both B and C Cooling Heating Simultaneous pressure & temperature change Both B and C Cooling ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Reduced pressure of a gas is the ratio of its Pseudocritical pressure to pressure Critical pressure to pressure Pressure to critical pressure Pressure to pseudocritical pressure Pseudocritical pressure to pressure Critical pressure to pressure Pressure to critical pressure Pressure to pseudocritical pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Lowering of condenser temperature (keeping the evaporator temperature constant) in case of vapour compression refrigeration system results in Increased COP Decreased COP Increased or decreased COP ; depending upon the type of refrigerant Same COP Increased COP Decreased COP Increased or decreased COP ; depending upon the type of refrigerant Same COP ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The entropy change in a reversible isothermal process, when an ideal gas expands to four times its initial volume is R loge 4 R log10 4 Cv loge 4 Cv log10 4 R loge 4 R log10 4 Cv loge 4 Cv log10 4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The adiabatic throttling process of a perfect gas is one of constant enthalpy In which there is an increase in temperature In which there is a temperature drop Which is exemplified by a non-steady flow expansion Which can be performed in a pipe with a constriction In which there is an increase in temperature In which there is a temperature drop Which is exemplified by a non-steady flow expansion Which can be performed in a pipe with a constriction ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an ideal solution, the value of activity co-efficient is 1 > 1 < 1 1 > 1 < 1 ANSWER DOWNLOAD EXAMIANS APP
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