Assertion : $Δ H$ and $Δ E$ are almost same for the reaction,

$N_{2} (g) + O_{2} (g) ⇌ 2 N O (g)$ .
Reason: All reactants and products are gases.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Assertion is incorrect but Reason is correct.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
$Δ H = Δ E + Δ n R T$

If there is no change in the moles of reactants (gaseous) and products (gaseous) $Δ n = 2 - (1 + 1) = 0$

$∴ Δ H = Δ E$

All reactants and products are gases in this reaction.

Suggest Corrections

Similar questions

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) The enthalpy of reaction remains constant in the presence of a catalyst.

Reason (R) A catalyst participating in the reaction forms different activated complex and lowers down the activation energy but the difference in enrgy of reactant and product remains the same.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Assertion: All the points (1, 0), (-1, 0), (2, 0) and (5, 0) lie on the x – axis.
Reason: Equation of the x-axis is y = 0

Choose the correct option.

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Assertion :ΔH and ΔE are almost same for the reaction,N2(g)+O2(g)⇌2NO(g). Reason: All reactants and products are gases.

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.ΔH=ΔE+ΔnRTIf there is no change in the moles of reactants (gaseous) and products (gaseous) Δn=2−(1+1)=0∴ΔH=ΔEAll reactants and products are gases in this reaction.

Assertion : $Δ H$ and $Δ E$ are almost same for the reaction,

$N_{2} (g) + O_{2} (g) ⇌ 2 N O (g)$ .
Reason: All reactants and products are gases.