Category: Stoichiometry

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 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_________________?

Stoichiometry 10/07/2020
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A. Significantly less than 4.69 atm
B. Nearly equal to 4.69 atm
C. Significantly more than 4.69 atm
D. Indeterminate due to lack of data

Pick out the wrong statement?

Stoichiometry 20/06/2020
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A. The evaporation of aqueous solution of glucose causes its molarity to increase
B. Both the freezing point as well as boiling point of sea water is more than that of distilled water
C. The solution containing equal masses of two liquids ‘X’ and ‘Y’ has the same mole fraction of’
‘X’ and ‘Y’
D. Both B. and C.