Chemical Engineering Thermodynamics - Study Mode

[#426] The energy of activation of exothermic reaction is
Correct Answer

(D) Not possible to predict

Explanation

Solution: The activation energy of a reaction is the amount of energy required for the reactants to reach the transitional state and is always positive and for different exothermic reactions its value will be different.

[#427] The equation Tds = dE - PdV applies to
Correct Answer

(D) Both B and C

Explanation

Solution: The given is a property relation which is valid for any system whose composition is not changing with time.

[#428] In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respetively, the Carnot COP will be
Correct Answer

(A) 5.2

[#429] Claude gas liquefaction process employs cooling
Correct Answer

(C) By expansion in an engine

[#430] Air-refrigeration cycle
Correct Answer

(D) Both B and C