CHEMICAL ENGINEERING

What is the value of maximum COP in case of absorption refrigeration, if refrigeration provided is at temperature, TR (where, T1 and T2 are source & surrounding temperatures respectively.) ? A. TR/(T2 – TR) × (T1 – T2)/T1 B. TR/(T2 – TR) × T1/(T1 – T2) C. TR/(T1 – TR) × (T1 – T2)/T1 D….

Number of degrees of freedom for a three phase system in equilibrium comprising of three non-reacting chemical species is__________________? A. 2 B. 0 C. 1 D. 3

Gibbs-Duhem equation_____________________? A. States that n1dμ1 + n2dμ2 + ….njdμj = 0, for a system of definite composition at constant temperature and pressure B. Applies only to binary systems C. Finds no application in gas-liquid equilibria involved in distillation D. None of these

Entropy change of mixing two liquid substances depends upon the_________________? A. Molar concentration B. Quantity (i.e. number of moles)C. Both A. and B D. Neither A. nor B

Free energy change at equilibrium is____________________? A. Zero B. Positive C. Negative D. Indeterminate

Extensive properties of a thermodynamic system depend upon the _____________ of the system? A. Specific volume B. TemperatureC. Mass D. Pressure

In the reaction, represented by, 2SO2 + O2 ⇌ 2SO3; ΔH = – 42 kcal; the forward reaction will be favoured by____________________? A. Low temperature B. High pressureC. Both A. and B D. Neither A. nor B

Chemical potential is a/an_____________________? A. Extensive property B. Intensive property C. Force which drives the chemical system to equilibriumD. Both B. and C

_______________ functions are exemplified by heat and work ? A. Path B. Point C. State D. None of these