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NEET2026PhysicsChapterActual

Suppose the intermolecular forces in 1.7 kg of liquid ammonia ( NH₃ ) completely vanish, causing it to behave as an ideal gas. The volume occupied by this gas at standard temperature and pressure (STP) will be:

Options

  1. A2.24 10⁻³ m ^3
  2. B2.24 m ^3
  3. C22.4 m ^3
  4. D2.24 10^3 m ^3

Correct answer

B. 2.24 m ^3

Step-by-step solution

Mass of NH₃ = 1.7 kg = 1700 g Molar mass of NH₃ = 14 + 3 = 17 g/mol Number of moles n = 1700 17 = 100 mol Volume of 1 mole of an ideal gas at STP is 22.4 L = 22.4 10⁻³ m ^3 Total volume V = n 22.4 10⁻³ m ^3 V = 100 22.4 10⁻³ m ^3 = 2.24 m ^3 Answer: 2.24 m ^3

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