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The number of moles of hydrogen molecules required to produce 20 moles of ammonia through Haber's process is :

(A)

10

(B)

20

(C)

30

(D)

40

NEET - Medical UG-2019 Easy

Answer & Solution:

Answer : 30 mol

The equation for Haber's process is :  \(\large N_2 (g) + 3H_2 (g) \rightleftharpoons 2NH_3 (g)\)

So, for 20 mol ammonia production , !0 mol Nitrogen is needed and hence 30 mol Hydrogen is required . 

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Other Questions of the same topic

Q1:

10 g of a mixture of BaO and CaO requires 100 \(\large cm^{3}\) of 2.5 M HCl to react completely. The
percentage of calcium oxide in the mixture is approximately
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(A)

52.6

(B)

44.9

(C)

55.1

(D)

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Q2:

The density of 2 M aqueous solution of NaOH is 1.28 \(\large g/cm^3\). The molality of the solution is:

[Given that molecular mass of NaOH = \(\large 40 \ g \ mol^{-1}\)]

(A)

1.20 m

(B)

1.56 m

(C)

1.67 m

(D)

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Q3:

Molarity is

(A)

The number of moles of solute present in 1 \(dm^{3}\) volume of solution

(B)

The number of moles of solute dissolved in 1 kg of solvent

(C)

The number of moles of solute dissolved in 1 kg of solution

(D)

The number of moles of solute dissolved in 100 \(dm^{3}\) volume of solution

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Q4:

A metal M (specific heat 0.16) forms a metal chloride with \(\approx\) 65% chlorine present in it. The formula of the metal chloride will be

(A)

MCl

(B)

\(MCl_{2}\)

(C)

\(MCl_{3}\)

(D)

\(MCl_{4}\)

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Physics Biology

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