Question

The volume occupied by $$88\,g$$  of $$C{O_2}$$  at $$30{\,^ \circ }C$$  and $$1\,bar$$  pressure will be

A. 5.05$$\,L$$
B. 50.36$$\,L$$  
C. 2$$\,L$$
D. 55$$\,L$$
Answer :   50.36$$\,L$$
Solution :
$$m = 88\,g,M = 44\,\,g\,\,mo{l^{ - 1}},$$      $$T = 273 + 30 = 303\,K$$
$$\eqalign{ & P = 1\,bar,V = ? \cr & PV = nRT\,\,{\text{or}}\,\,V = \frac{{nRT}}{P} = \frac{m}{M}\frac{{RT}}{P} \cr & V = \frac{{88 \times 0.0831 \times 303}}{{44 \times 1}} = 50.36\,L \cr} $$

Releted MCQ Question on
Physical Chemistry >> States of Matter Solid, Liquid and Gas

Releted Question 1

Equal weights of methane and oxygen are mixed in an empty container at $${25^ \circ }C.$$  The fraction of the total pressure exerted by oxygen is

A. $$\frac{1}{3}$$
B. $$\frac{1}{2}$$
C. $$\frac{2}{3}$$
D. $$\frac{1}{3} \times \frac{{273}}{{298}}$$
Releted Question 2

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is

A. Critical temperature
B. Boyle temperature
C. Inversion temperature
D. Reduced temperature
Releted Question 3

The ratio of root mean square velocity to average velocity of a gas molecule at a particular temperature is

A. 1.086 : 1
B. 1 : 1.086
C. 2 : 1.086
D. 1.086 : 2
Releted Question 4

Helium atom is two times heavier than a hydrogen molecule. At $$298 K,$$  the average kinetic energy of a helium atom is

A. two times that of a hydrogen molecule.
B. same as that of a hydrogen molecule.
C. four times that of a hydrogen molecule.
D. half that of a hydrogen molecule.

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States of Matter Solid, Liquid and Gas


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