In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respectively, the Carnot COP will be________________?
(A) 5.2
(B) 6.2
(C) 0.168
(D) Data insufficient, can’t be found out
Chemical engineering thermodynamics is concerned with the ____________ in/of chemical processes?
(A) Reaction mechanism
(B) Calculation of rates
(C) Energy transformation from one form to another
(D) None of these
Which of the following is affected by the temperature ?
(A) Fugacity
(B) Activity co-efficient
(C) Free energy
(D) All A,
For the gaseous phase chemical reaction, C2H4(g) + H2O(g) ↔ C2H5OH(g), the equilibrium conversion does not depend on the________________?
(A) Steam to ethylene ratio
(B) Temperature
(C) Pressure
(D) None of these
Which of the following exemplifies an adiabatic process ?
(A) Melting of ice
(B) Condensation of alcohol vapor
(C) Sudden bursting of a cycle tube
(D) Evaporation of water
A gas performs the maximum work, when it expands___________________?
(A) Non-uniformly
(B) Adiabatically
(C) Isobarically
(D) Isothermally
Absolute zero temperature signifies the ____________________?
(A) Minimum temperature attainable
(B) Temperature of the heat reservoir to which a Carnot engine rejects all the heat that is taken in
(C) Temperature of the heat reservoir to which a Carnot engine rejects no heat
(D) None of these
Melting of ice exemplifies a/an______________________?
(A) Adiabatic process
(B) Endothermic reaction
(C) Exothermic reaction
(D) Process involving a chemical reaction
Normal temperature and pressure (N.T.P.) corresponds to ___________________?
(A) 0°C and 760 mm Hg
(B) 15°C and 760 mm Hg
(C) 20°C and 760 mm Hg
(D) 0°C and 1 kgf/cm2
The root mean square speed of molecules of a gas is equal to (where, m = mass of the molecule K = Boltzmann‟s constant, T = absolute temperature) ?
(A) √(2KT/m)
(B) √(3KT/m)
(C) √(6KT/m)
(D) 3KT/m