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Zeroth Law of Thermodynamics MCQ. We covered all the Zeroth Law of Thermodynamics MCQ in this post for free so that you can practice well for the exam.
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MCQ on Zeroth Law of Thermodynamics for NEET Students
If the internal energy of an ideal gas drops by an amount equal to the work it performs, the type of process is called ………
(A) cyclic
(B) isothermal
(C) adiabatic
(D) isochoric
Option c – adiabatic
A gas releases 50 J of heat during cooling and compresses in such a way that 20 J of work is done on it. What is the resulting change in internal energy?
(A) 70 J
(B) -30 J
(C) 30 J
(D) -70 J
Option b – -30 J
Which statement accurately describes entropy?
(A) The entropy of a flawless crystal at 0 °C is assumed to be zero
(B) A perfect crystal has some entropy at absolute zero temperature
(C) All crystals are assumed to have zero entropy at absolute zero
(D) A perfect crystal has zero entropy at absolute zero temperature
Option d – A perfect crystal has zero entropy at absolute zero temperature
The neutralization of NaOH with HCl releases 57.1 kJ/mol of heat. If 0.28 moles of each are reacted, how much heat is liberated?
(A) 16 kJ
(B) 14.5 kJ
(C) 18 kJ
(D) 26.2 kJ
Option a – 16 kJ
Which of the following is classified as an intensive property?
(A) specific heat capacity
(B) entropy
(C) internal energy
(D) enthalpy
Option a – specific heat capacity
When 1 mole of Al₄C₃(s) reacts with water in a sealed container at 27 °C under atmospheric pressure, what is the amount of work done?
(A) -1800 cal
(B) -600 cal
(C) +1800 cal
(D) zero cal
Option d – zero cal
During which of the following processes does the temperature drop?
(A) adiabatic compression
(B) isothermal expansion
(C) isothermal compression
(D) adiabatic expansion
Option d – adiabatic expansion
A system absorbs 60 J of heat and performs 245 J of work on its surroundings. What is the change in its internal energy?
(A) 90 J
(B) -185 J
(C) -180 J
(D) 225 J
Option b – -185 J
In which of the following cases is the change in entropy negative?
(A) iodine undergoing sublimation
(B) hydrogen molecules dissociating
(C) formation of liquid water
(D) decomposition of calcium carbonate
Option c – formation of liquid water
Which of the following are not considered state functions? i. q + w ii. q iii. w iv. H – TS
(A) Only i, ii, and iii
(B) Only ii and iii
(C) Only i and iv
(D) Only ii, iii, and iv
Option b – Only ii and iii
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