Equal masses of CH4 and H2 are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is___________________?
(A) 1/9
(B) 8/9
(C) 1/2
(D) 5/9
No cooling occurs, when an ideal gas undergoes unrestrained expansion, because the molecules____________________?
(A) Collide without loss of energy
(B) Do work equal to loss in kinetic energy
(C) Are above the inversion temperature
(D) Exert no attractive force on each other
Density of carbon dioxide is _________________ kg/Nm3 ?
(A) 44/22400
(B) 44/22.4
(C) 22.4/44
(D) None of these
The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the_____________________?
(A) Relative humidity
(B) Relative saturation
(C) Percentage saturation
(D) None of these
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?
(A) AB3
(B) A2B3
(C) A2B
(D) AB2
Which of the following has the smallest least effect on the solubility of a solute into the solvent ?
(A) Nature of the solute
(B) Nature of the solvent
(C) Temperature
(D) Pressure
Normality of a solution does not change with the increase in the __________________?
(A) Pressure
(B) Temperature
(C) Solute concentration
(D) Dilution of the solution
At higher temperatures, molal heat capacities for most of the gases (at constant pressure) _______________ with increase in temperature?
(A) Varies linearly
(B) Increases
(C) Decreases
(D) Does not vary
Which of the following terms of Vander Walls equation of state for a non-ideal gas accounts for intermolecular forces ?
(A) RT
(B) P + (a/V2)
(C) (V – b)
(D) 1/RT