Chemical Engineering Thermodynamics Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are Both B & C Always greater than one Same at the same reduced temperature Same at the same reduced pressure Both B & C Always greater than one Same at the same reduced temperature Same at the same reduced pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is Zero Negative Positive Infinity Zero Negative Positive Infinity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics As the temperature is lowered towards the absolute zero, the value of the quantity (∂ΔF/∂T) approaches None of these Unity Zero Infinity None of these Unity Zero Infinity ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzman's constant, T = absolute temperature) √(2KT/m) √(6KT/m) 3KT/m √(3KT/m) √(2KT/m) √(6KT/m) 3KT/m √(3KT/m) ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Entropy of the system decreases, when Both B & C A gas expands spontaneously from high pressure to low pressure Snow melts into water Water is converted into ice Both B & C A gas expands spontaneously from high pressure to low pressure Snow melts into water Water is converted into ice ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of vapour compression refrigeration system, elevating the evaporator temperature (keeping the condenser temperature constant) results in Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP No change in the value of COP Decreased COP Increased or decreased COP ; depending upon the type of refrigerant Enhanced COP No change in the value of COP Decreased COP ANSWER DOWNLOAD EXAMIANS APP
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