Stoichiometry - Study Mode
[#226] 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
Correct Answer
(C) Significantly more than 4.69 atm
[#227] If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature.
Correct Answer
(B) It will undergo no change until
[#228] If 1.5 moles of oxygen combines with aluminium to form Al 2 O 3 , then the weight of aluminium (atomic weight = 27) used in this reaction is __________ gm.
Correct Answer
(B) 54
[#229] Hess's law of constant heat summation is based on conservation of mass. It deals with
Correct Answer
(C) Changes in heat of reaction
[#230] Except for monoatomic gases, the molal heat capacity at constant volume for all gases is __________ Kcal/Kg mole.° K.
Correct Answer
(B) > 3