Free preparation Medical and Engineering Entrance Exams | Thermo chemistry (Thermodynamics)

THERMODYNAMICS | THERMO CHEMISTRY

India Study Solution Test Series (Chemistry Objective Questions)

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Chemistry Practice Questions: Thermodynamics (Thermo-chemistry)

India Study Solution MCQ Test Series – Set 4 (Q. No 31-40)

Question 31: Which of the following is an endothermic reaction?

a. N

b. N

c. H

d. C

Question 32: An ideal gas is taken around the cycle ABCA as shown in P-V diagram. The net work done by the gas during the cycle is equal to:

a. 12P₁V₁

b. 6P

c. 5P

d. P

Question 33: Which of the following is correct option for free expansion of an ideal gas under adiabatic condition?

a. q = 0, ∆T < 0, w ≠ 0

b. q = 0, ∆T ≠ 0, w = 0

c. q ≠ 0, ∆T = 0, w = 0

d. q = 0, ∆T = 0, w = 0

Question 34: The energy associated with a system by virtue of its position is

a. Gibbs Energy

b. Internal Energy

c. Kinetic Energy

d. Potential Energy

Question 35: For isothermal expansion in case of an ideal gas:

a. ∆G = ∆S

b. ∆G = ∆H

c. ∆G = -T.∆S

d. None of these 

Question 36: One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The ∆E for this process is (R = 2 cal. mol

a. 1381.1 cal

b. Zero

c. 163. 7 cal

d. 9 L atm

Question 37: The difference between ∆H and ∆E on a molar basis for the combustion of Methane gas at T K (kelvin) would be:

a. Zero

b. - RT

c. -2RT

d. -3RT

Question 38: Which reaction, with the following values of ∆H, ∆S, at 400 K is spontaneous and endothermic?

a. ∆H = -48 kJ; ∆S = + 135 J/K

b. ∆H = -48 kJ; ∆S = -135 J/K

c. ∆H = + 48 kJ; ∆S = +135 J/K

d. ∆H = +48 kJ; ∆S = -135 J/K

Question 39: When a certain amount of ethylene was combusted, 6226 kJ heat was evolved. If heat of combustion of ethylene is 1411 kJ/mole, the volume of O

a. 296.5 ml

b. 296.5 litres

c. 6226 x 22.4 litres

d. 22.4 litres

Question 40: For the reaction

C₃H₈ (g) + 5O₂ (g) → 3CO₂ (g) + 4H₂O (l)

at constant temperature, ∆H – ∆E is

a. + RT

b. -3RT

c. +3RT

d. -RT

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India Study Solution MCQ Test Series - Hints and Solutions

tHERMODYNAMICS (THERMO-CHEMISTRY)

Set 4 (Q. No.31–40) Answers

https://www.indiastudysolution.com

Answer 31: b. Answer 32: c. Answer 33: d. Answer 34: d. Answer 35: c. Answer 36: b. Answer 37: c. Answer 38: c. Answer 39: b. Answer 40: b.

THERMODYNAMICS (Thermo-chemistry) - More India Study Solution Chemistry Test Series Questions

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