Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 25∘C are 200 mmHg and 415 mmHg respectively. Vapour pressure of the solution obtained by mixing 25.5 g of CHCl3 and 4Og of CH2Cl2 at the same temperature will be: [Molecular mass of CHCl3=119.5 g/mol and molecular mass of CH2Cl2=85 g/mol ]
Held on 30 Apr 2012 · Verified 9 Jul 2026.
173.9mmHg
615.0mmHg
347.9mmHg
28.5mmHg
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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:
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