Which of the following is insensitive to changes in pressure? Heat of vaporisation Both B & C Heat of fusion Melting point TRUE ANSWER : ? YOUR ANSWER : ?
The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies 0.5 < XM < 0.64 XM < 0.5 XM = 0.5 XM ≥ 0.64 TRUE ANSWER : ? YOUR ANSWER : ?
For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by Increase in pressure Decrease in temperature Decrease in pressure Increasing the concentration of N₂ TRUE ANSWER : ? YOUR ANSWER : ?
Disappearance of snow in subzero weather exemplifies the process of Sublimation Melting Vaporisation Evaporation TRUE ANSWER : ? YOUR ANSWER : ?
An oxidation process is accompanied by decrease in the Number of ions All of these Oxidation number Number of electrons TRUE ANSWER : ? YOUR ANSWER : ?
Raoult's law states that 'the equilibrium vapor pressure that is exerted by a component in a solution is proportional to the mole fraction of that component'. This generalisation is based on the assumption that the Attractive forces between like and unlike molecules are approximately equal All of these Sizes of the component molecules are approximately equal Component molecules are non-polar and no chemical combination or molecular association between unlike molecules takes place in the formation of the solution TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a unit of pressure? Bar Kilo-pascal Newton/metre² Parsec TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is followed by an ideal solution ? Boyle's law Raoult's law Amgat's law Trouton's rule TRUE ANSWER : ? YOUR ANSWER : ?
Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is 2 1 3 TRUE ANSWER : ? YOUR ANSWER : ?