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NTA Abhyas NEET2020ChemistryChemical EquilibriumPractice

Consider the following reaction equilibrium N 2 g + 3 H 2 ( g ) ⇌ 2 N H 3 ( g ) Initially, 1 mole of N 2 and 3 moles of H 2 are taken in a 2 L flask. At equilibrium state if, the number of moles of N 2 is 0.6, what is the total number of moles of all gases present in the flask?

Options

  1. A0.8
  2. B1.6
  3. C3.2
  4. D6.4

Correct answer

C. 3.2

Step-by-step solution

Number of moles of N 2 = 0.6 = 1 - x ∴ x = 1 - 0.6 = 0.4 So, 3 - 3 x = 3 - 3 × 0.4 = 1.8 , and 2 x = 2 × 0.4 = 0.8 Therefore, the total number of moles at equilibrium. = 1 - x + 3 - 3 x + 2 x = 0.6 + 1.8 + 0.8 = 3.2 mol

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