Which of the following statements is correct regarding a solution of two compounds A and B exhibiting positive deviation from ideal behaviour?
Held on 30 Apr 2019 · Verified 9 Jul 2026.
Intermolecular attractive forces between A−A and B−B are stronger than those between A−B.
Δmix H=0 at constant T and p
Δmix V=0 at constant T and p
Intermolecular attractive forces between A−A and B−B are equal to those between A−B.
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For the reaction 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), ΔH = -198 kJ. Which condition favours forward reaction?
The unit of rate constant for a first-order reaction is:
The conjugate base of H₂SO₄ is:
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If the half-life $\left(\mathrm{t}_{1 / 2}\right)$ for a first order reaction is 1 minutes, then the time required for $99.9 \%$ completion of the reaction is closest to:
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