For gaseous state, if most probable speed is denoted by C*,average speed by \[\overline{C}\] and ...
View QuestionThe compressibility factor for a real gas at high pressure is
a) \[1+\frac{RT}{pb}\] b) 1 c) \[1+\frac{pb}{RT}\] d) \[1-\frac{pb}{RT}\] Answer: c Explanation:
View QuestionThe molecular velocity of any gas is
a) inversely proportional to absolute temperature b) directly proportional to square of temperature c) directly proportional to square root of ...
View QuestionWhen r, P and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of the rates of diffusion (rA / rB ) of two gases A and B, is given as :
When r, P and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of ...
View QuestionIf 10^-4 dm^3 of water is introduced into a 1.0 dm^3 flask at 300 K, how many moles of water are in the vapour phase when equilibrium is established ?
If \[10^{-4}dm^{3}\] of water is introduced into a \[1.0dm^{3}\] flask at 300 K, how many moles of water ...
View QuestionEqual masses of methane and oxygen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by oxygen is
a) \[1\diagup2\] b) \[2\diagup3\] c) \[\frac{1}{3}*\frac{273}{298}\] d) \[1\diagup3\] Answer: d Explanation:
View QuestionThe volume of a colloidal particle, Vc as compared to the volume of a solute particle in a true solution Vs , could be
The volume of a colloidal particle, \[V_{C}\] as compared to the volume of a solute particle in a ...
View QuestionWhich one of the following statements is NOT true about the effect of an increase in temperature on the distribution of molecular speeds in a gas?
a) The area under the distribution curve remains the same as under the lower temperature b) The distribution becomes broader
View QuestionIn van der Waals equation of state of the gas law, the constant ‘b’ is a measure of
a) volume occupied by the molecules b) intermolecular attraction c) intermolecular repulsions d) intermolecular collisions per unit volume Answer: a
View QuestionAs the temperature is raised from 20ºC to 40ºC, the average kinetic energy of neon atoms changes by a factor of which of the following ?
a) \[313\diagup293\] b) \[\sqrt{\left(313\diagup293\right)}\] c) \[1\diagup2\] d) 2 Answer: a Explanation:
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