41. Molar heat capacity of water in equilibrium with ice at constant pressure is
42. The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies
43. The pressure under which liquid and vapor can co-exit at equilibrium is called the __________ vapor pressure.
44. A compound was found having nitrogen and oxygen in the ratio 28 gm and 80 gm respectively. The formula of the compound is
45. The molar composition of a gas is 10% H2, 10% O2, 30% CO2 and balance H2O. If 50% H2O condenses, the final mole percent of H2 in the gas on a dry basis will be
46. A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is
47. On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes
48. At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be
49. An aqueous solution of 2.45% by weight H2SO4 has a specific gravity of 1.011. The composition expressed in normality is
50. The hydroxyl ion (OH-) concentration in a solution having pH value 3 will be
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