At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 355 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be

significantly less than 69 atm.

significantly more than 69 atm.

indeterminate due to lack of data

Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is

greater than 80.1°C but less than 100°C.

16 + Mcqs in Stoichiometry in Chemistry Page 1 McqOptions

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An equation for calculating vapour pressure is given by, log10 P = A – B(t + c). This is called the

A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be

The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg. ?

A gas occupies a volume of 283 c.c at 10°C. If it is heated to 20°C at constant pressure, the new volume of the gas will be __________ c.c.

The temperature of a gas in a closed container is 27° C. If the temperature of the gas is incresed to 300° C, then the pressure exerted is

Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is

The value of gas constant 'R' is __________ kcal/kg.mole.°C.

What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively ?

"""The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements."" This is the statement of"

'The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes''. This is the __________ law.

°API gravity of water at N.T.P. is about

"One of the specific gravity scales is ""Brix"" (used speicifically for sugar solution). It is defined as"

At a temperature of 0°K, the molecules of a gas have only __________ energy.

'The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface''. This statement pertaining to the solubility of gases in liquid is the __________ law.