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The relative lowering of the vapour pressure of an aqueous solution containing a non-volatile solute is 0.0125. The molality of the solution is:

(A) 0.07 (B) 0.30 (C) 0.70 (D) 0.125 The Correct Answer is (C) 0.70 Solution: As we know: The relative lowering of the vapour... View Article

An ideal gas at 27°c has compressed adiabatically to 8/27 of its original volume. If γ = 5/3 then the rise in temperature will be

(A) 225 K (B) 305 K (C) 375 K (D) 450 K The Correct Answer is (C) 375 K. Solution: As given: Degree of freedom, γ = 5/3 Let the initial... View Article

Two moles of a monoatomic gas are mixed with three moles of a diatomic gas. What will be the molar specific heat of the mixture at a constant volume?

(A) 1.6 R (B) 2.1 R (C) 3.6 R (D) 6.25 R The Correct Answer is (B) 2.1 R Solution: As given: The number of moles of a monatomic gas n1 = 2... View Article

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