With increase in the solute concentration, the specific heat of aqueous solutions _____________________?
(A) Increases
(B) Decreases
(C) Remains unchanged
(D) Either
Osmotic pressure exerted by a solution prepared by dissolving one gram mole of a solute in 22.4 litres of a solvent at 0°C will be _______________ atmosphere?
(A) 0.5
(B) 1
(C) 1.5
(D) 2
500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be _____________ mm Hg?
(A) 650
(B) 700
(C) 600
(D) 375
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be________________?
(A) 0°C
(B) 0°K
(C) -136.5°C
(D) -136.5°K
A fluid gas produced on burning furnace oil contains 0.15 gm mole of CO2, 0.05 gm mole of oxygen and 0.80 gm mole of N2. What is its molecular weight ?
(A) 28.6
(B) 30.0
(C) 30.6
(D) 32.6
1 Kcal/kg. °C is equivalent to _______________ BTU/lb. °F ?
(A) 1
(B) 2.42
(C) 4.97
(D) None of these
For the gaseous phase reaction, N2 + O2 ⇌ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by____________________?
(A) Increasing the concentration of N2
(B) Decrease in temperature
(C) Increase in pressure
(D) Decrease in pressure
In _______________ process, ions of salts react with water to produce acidity or alkalinity ?
(A) Hydration
(B) Hydrolysis
(C) Electrolysis
(D) Dialysis
The value of (Cp – Cv) for a real gas obeying Vander Wall’s equation is____________________?
(A) R
(B) > R
(C) < R
(D) 0.5 R