Joule- Thomson coefficient \[\left(\frac{\delta T}{\delta P}\right)_{H}\] for an ideal gas is a) zero b) positive c) negative d) ...
View QuestionThe value of van der waals constant ‘a’ for gases O2, N2, NH3 and CH4 are 1.360, 1.390, 4.170 and 2.253 liter^2 atm mol^–2 respectively. The gas which can most easily be liquefied is
The value of van der waals constant ‘a’ for gases \[O_{2},N_{2},NH_{3} andCH_{4}\] are 1.360, 1.390, 4.170 and \[2.253 liter^{2}\] atm ...
View QuestionThe ratio of Boyle’s temperature and critical temperature for a gas is
a) \[\frac{8}{27}\] b) \[\frac{27}{8}\] c) \[\frac{1}{2}\] d) \[\frac{2}{1}\] Answer: b Explanation: Boyle’s temperature, \[T_{b}=\frac{a}{Rb} \] and critical temperature, \[T_{c}=\frac{8a}{27Rb} ...
View QuestionAn ideal gas obeying kinetic theory of gases can be liquefied if
a) its temperature is more than critical temperature \[T_{C}\] b) its pressure is more than critical pressure \[P_{C}\]
View QuestionThe van der Waal’s equation reduces itself to the ideal gas equation at
a) high pressure and low temperature b) low pressure and low temperature c) low pressure and high temperature d) high ...
View QuestionWhich of the following exhibits the weakest inter-molecular forces
a) \[NH_{3}\] b) HCl c) He d) \[H_{2}O\] Answer: c Explanation: "He" possess van der waals forces of attraction, ...
View QuestionThe temperature at which real gases obey the ideal gas laws over a wide range of pressure is called
a) Critical temperature b) Boyle’s Temperature c) Inversion temperature d) Reduced temperature Answer: b Explanation: Boyle’s temperature by definition. ...
View QuestionAn ideal gas is one which obeys the gas laws under
a) a few selected experimental conditions b) all experimental conditions c) low pressure alone d) high temperature alone Answer: b ...
View QuestionThe density of air is 0.00130 g/ml. The vapour density of air will be
a) 0.00065 b) 0.65 c) 14.4816 d) 14.56 Answer: d Explanation: VD of air = mass of 11200cc of ...
View QuestionThere are 6.02* 10^22 molecules each of N2, O2 and H2 which are mixed together at 760 mm and 273 K. The mass of the mixture in grams is
There are \[6.02* 10^{22}\] molecules each of \[N_{2},O_{2} andH_{2}\] which are mixed together at 760 mm and 273 ...
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