General Science GK Quiz for Competitive Exams
Find the temperature at which the below reaction will be in equilibrium if the enthalpy and entropy change for the reaction is 30 Kj mol-1 and 105 J K-1 mol-1 respectively
Br2(l) + Cl2(g) → 2BrCl(g)
(A) 273 K
(B) 300 K
(C) 450 K
(D) 285.7 K
Correct Answer : D
What will be the work done by 3 moles of an ideal gas when it expands spontaneously in vacuum?
(A) Zero
(B) Infinite
(C) 3 joules
(D) 9 joules
Correct Answer : A
What is the function of a catalyst in a chemical reaction?
(A) Decrease rate constant of reaction
(B) Increases activation energy of reaction
(C) Reduces enthalpy of reaction
(D) Does not affect the equilibrium constant of reaction
Correct Answer : D
Find the compound which undergoes nucleophilic substitution reaction exclusively by an SN1 mechanism
(A) Benzyl chloride
(B) Chlorobenzene
(C) Ethyl chloride
(D) Isopropyl chloride
Correct Answer : A
Which of the following process is used to do maximum work done on the ideal gas if the gas is compressed to half of its initial volume?
(A) Isothermal
(B) Isochoric
(C) Isobaric
(D) Adiabatic
Correct Answer : D
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