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Test: Thermochemistry, Entropy Changes - JEE MCQ


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10 Questions MCQ Test Chemistry for JEE Main & Advanced - Test: Thermochemistry, Entropy Changes

Test: Thermochemistry, Entropy Changes for JEE 2024 is part of Chemistry for JEE Main & Advanced preparation. The Test: Thermochemistry, Entropy Changes questions and answers have been prepared according to the JEE exam syllabus.The Test: Thermochemistry, Entropy Changes MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Thermochemistry, Entropy Changes below.
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Test: Thermochemistry, Entropy Changes - Question 1

If a reaction involves only solids and liquids which of the following is true?

Detailed Solution for Test: Thermochemistry, Entropy Changes - Question 1

ΔH = ΔE + PΔV, for solid and liquid, ΔV = 0
or ΔH = ΔE + ΔnRT, for solids and liquids
Δn = 0

Test: Thermochemistry, Entropy Changes - Question 2

One mole of a non-ideal gas undergoes a change of state (2.0 atm,3.0 L,95 K) → (4.0 atm, 5.0 L, 245 K) with a change in internal energy, ΔU = 30.0 L atm. The change in enthalpy ΔH of the process in L atm is.

Detailed Solution for Test: Thermochemistry, Entropy Changes - Question 2



atm

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Test: Thermochemistry, Entropy Changes - Question 3

If bond enthalpies of and bonds are and respectively, for will be

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Test: Thermochemistry, Entropy Changes - Question 4

Heat of neutralization of a strong acid HA and a weaker acid with are and cal . When 1 mole of was added to a mixture containing 1 mole each of HA and , the heat change was . In what ratio is the base distributed between HA and HB.

Detailed Solution for Test: Thermochemistry, Entropy Changes - Question 4

Let mole of be neutralized by the strong acid . Then, moles neutralized by
Hence,

Test: Thermochemistry, Entropy Changes - Question 5

The latent heat of vapourization of a liquid at and 1 atm pressure is . What will be the change in internal energy of 3 moles of liquid at the same temperature

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Test: Thermochemistry, Entropy Changes - Question 6

The difference between the reaction enthalpy change and reaction internal energy change for the reaction:

at is

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For the reaction

Test: Thermochemistry, Entropy Changes - Question 7

From given following equations and values, determine the enthalpy of reaction at for the reaction :



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Test: Thermochemistry, Entropy Changes - Question 8

The enthalpy of the reaction forming according to the following equation is . What heat energy is released in formation of
(Atomic masses : Pb = 207,O = 16.0)

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Test: Thermochemistry, Entropy Changes - Question 9

What is for the combustion of 1 mole of benzene, when both the reactants and the products are at ?

Detailed Solution for Test: Thermochemistry, Entropy Changes - Question 9


(l)

Test: Thermochemistry, Entropy Changes - Question 10
For which one of the following equations is equal to ?
Detailed Solution for Test: Thermochemistry, Entropy Changes - Question 10
The reaction given in choice (b) represents either or
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