JEE Main 2024 (Online) 5th April Morning Shift

MCQ (Single Correct Answer)

-1

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R)

Assertion (A) : Enthalpy of neutralisation of strong monobasic acid with strong monoacidic base is always $$-57 \mathrm{~kJ} \mathrm{~mol}^{-1}$$

Reason (R) : Enthalpy of neutralisation is the amount of heat liberated when one mole of $$\mathrm{H}^{+}$$ ions furnished by acid combine with one mole of $${ }^{-} \mathrm{OH}$$ ions furnished by base to form one mole of water.

In the light of the above statements, choose the correct answer from the options given below.

(A) is true but (R) is false

Both (A) and (R) are true and (R) is the correct explanation of (A)

Both (A) and (R) are true but (R) is not the correct explanation of (A)

(A) is false but (R) is true

JEE Main 2024 (Online) 1st February Morning Shift

MCQ (Single Correct Answer)

-1

Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following :

$\mathrm{q}=0, \Delta \mathrm{T}=0, \mathrm{w}=0$

$\mathrm{q}=0, \Delta \mathrm{T} \neq 0, \mathrm{w}=0$

$\mathrm{q} \neq 0, \Delta \mathrm{T}=0, \mathrm{w}=0$

$\mathrm{q}=0, \Delta \mathrm{T}<0, \mathrm{w} \neq 0$

JEE Main 2024 (Online) 29th January Morning Shift

MCQ (Single Correct Answer)

-1

Which of the following is not correct?

$$\Delta \mathrm{G}$$ is positive for a spontaneous reaction

$$\Delta \mathrm{G}$$ is positive for a non-spontaneous reaction

$$\Delta \mathrm{G}$$ is zero for a reversible reaction

$$\Delta \mathrm{G}$$ is negative for a spontaneous reaction

JEE Main 2023 (Online) 13th April Evening Shift

MCQ (Single Correct Answer)

-1

What happens when methane undergoes combustion in systems A and B respectively?

JEE Main 2023 (Online) 13th April Evening Shift Chemistry - Thermodynamics Question 34 English

System A	System B
Temperature falls	Temperature rises

System A	System B
Temperature rises	Temperature remains same

System A	System B
Temperature falls	Temperature remains same

System A	System B
Temperature remains same	Temperature rises

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