Q181
Open questionThe evaporation of aqueous solution of sugar causes its molarity to
Select an option to see the answer and solution.
Chemical Engineering · all questionsStoichiometry
Stoichiometry
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
377
Questions
10/19
Page
Pick an option on a question to see the right answer and solution.
Q182
Open questionBoiling point of a solution as compared to that of the corresponding solvent is
Select an option to see the answer and solution.
Q183
Open questionAir at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity?
Vapour pressure of water at 20°C is 17.5 mm Hg.
Vapour pressure of water at 20°C is 17.5 mm Hg.
Select an option to see the answer and solution.
Q184
Open questionValidity of the relationship, inputs = outputs, holds good for the system at steady state
Select an option to see the answer and solution.
Q185
Open questionThe crystallisation of a solute from a solution may be done by
Select an option to see the answer and solution.
Q186
Open question'Giga' stands for
Select an option to see the answer and solution.
Q187
Open questionThe vapor pressure of liquids (having similar chemical nature) at any specified temperature __________ with increasing molecular weight.
Select an option to see the answer and solution.
Q188
Open question__________ chart is a graph related to Antonie equation.
Select an option to see the answer and solution.
Q189
Open questionSodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.
Select an option to see the answer and solution.
Q190
Open questionNormality of a solution does not change with the increase in the
Select an option to see the answer and solution.
Q191
Open questionThe elevation in boiling point of a solution is proportional to the __________ of the solution.
Select an option to see the answer and solution.
Q192
Open questionA 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.
Select an option to see the answer and solution.
Q193
Open questionThe latent heat of vaporisation
Select an option to see the answer and solution.
Q194
Open questionA solution is made by dissolving 1 kilo mole of solute in 2000 kg of solvent. The molality of the solution is
Select an option to see the answer and solution.
Q195
Open questionIf the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its
Select an option to see the answer and solution.
Q196
Open questionIf the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will
Select an option to see the answer and solution.
Q197
Open questionDisappearance of snow in subzero weather exemplifies the process of
Select an option to see the answer and solution.
Q198
Open questionAt 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 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be
Select an option to see the answer and solution.
Q199
Open questionIf a solution of eutectic composition is cooled, __________ reaching the eutectic temperature.
Select an option to see the answer and solution.
Q200
Open questionIf 1.5 moles of oxygen combines with aluminium to form Al2O3, then the weight of aluminium (atomic weight = 27) used in this reaction is __________ gm.
Select an option to see the answer and solution.