Explore topic-wise MCQs in SRMJEEE .

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.

1.

One mole of which of the following has the highest entropy? [Karnataka CET 2008]
A. liquid nitrogen
B. hydrogen gas
C. mercury
D. diamond
Answer» C. mercury
Discussion
2.

In which of the following process, a maximum increase in entropy is observed? [Karnataka CET 2007]
A. dissolution of salt in water
B. condensation of water
C. sublimation of naphthalene
D. melting of ice
Answer» D. melting of ice
Discussion
3.

Entropy of the universe is [Karnataka CET 2007]
A. continuously increasing
B. continuously decreasing
C. zero
D. constant
Answer» B. continuously decreasing
Discussion
4.

One mole of which of the following has the highest entropy? [Karnataka CET 2008] 
A. liquid nitrogen
B. hydrogen gas
C. mercury
D. diamond
Answer» C. mercury
Discussion
5.

The enthalpy of vaporization of benzene is +35.3 kJ/mol at its boiling point of 80°C.The entropy change in the transition of vapour to liquid at its boiling point is ______. (in J mol−1 K−1) [Karnataka CET 2011]
A. −100
B. +100
C. +342
D. −342
Answer» B. +100
Discussion
6.

Identify the correct statement from the following in a chemical reaction. [West Bengal JEE 2012]
A. The entropy always increases
B. The change in entropy along with suitable change in enthalpy decides the fate of a reaction
C. The enthalpy always decreases
D. Both the enthalpy and the entropy remain constant
Answer» C. The enthalpy always decreases
Discussion
7.

The temperature of the system .decreases in an ______.  [Karnataka CET 2005]
A. adiabatic compression
B. isothermal expansion
C. isothermal compression
D. adiabatic expansion
Answer» E.
Discussion
8.

Which of the following is an intensive property? [Karnataka CET 2007]
A. temperature
B. surface tension
C. viscosity
D. all of these
Answer» E.
Discussion
9.

In a constant volume calorimeter, 3.5 g of a gas with molecular weight 28 was burnt in excess oxygen at 298.0 K. The temperature of the calorimeter was found to increase from 298.0 K to 298.45 K due to the combustion process. Given that the heat capacity of the calorimeter is 2.5 kJ K−1, the numerical value for the enthalpy of combustion of the gas in kJ mol−1 is [IIT JEE 2009]
A. 3
B. 7
C. 8
D. 9
Answer» E.
Discussion
10.

The amount of heat evolved when 500 cm3 of 0.1 M HCl is mixed with 200 cm3 of 0.2 M NaOH is ______. [Karnataka CET 2010]
A. 1.292 kJ
B. 2.292 kJ
C. 3.392 kJ
D. 0.292 kJ
Answer» C. 3.392 kJ
Discussion
11.

The bond energy (in kcal mol–1) of a C—C single bond is approximately [IIT JEE 2010]
A. 1
B. 10
C. 100
D. 1000
Answer» D. 1000
Discussion
12.

The amount of the heat released when 20 ml 0.5 M NaOH is mixed with 100 ml 0.1 M HCl is x kJ. The heat of neutralization is [West Bengal JEE 2011]
A. – 100 x kJ/mol
B. – 50 x kJ/mol
C. + 100 x kJ/mol
D. +50 x kJ/mol
Answer» B. – 50 x kJ/mol
Discussion
13.

Based on the first law of thermodynamics, which one of the following is correct? [Karnataka CET 2011]
A. For an isothermal process, q = +w
B. For an isochoric process, ΔU = -q
C. For an adiabatic process, ΔU = -w
D. For a cyclic process, q = -w
Answer» E.
Discussion
14.

The enthalpy of fusion of water is 1.435 kcal/mol. The molar entropy change for the melting of ice at 0°C is [CBSE AIPMT 2012]
A. 5.260 cal/(mol K)
B. 0.526 cal/(mol K)
C. 10.52 cal/(mol K)
D. 21.04 cal/(mol K)
Answer» B. 0.526 cal/(mol K)
Discussion
15.

Standard enthalpy of vapourisation DvapHQ for water at 100° C is 40.66 kJmol–1. The internal energy of vapourisation of water at 100°C (in kJmol–1) is

(Assume water vapour to behave like an ideal gas) [CBSE AIPMT 2012]
A. +43.76
B. +40.66
C. +37.56
D. –43.76
Answer» D. –43.76
Discussion