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Gaseous State

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

Whether the gas has mass

a)

yes

b)

No

c)

None of the above

2.

What is an ideal gas

a)

A gas obeys the gas laws

b)

A gas does not obey the gas laws

c)

A gas obeys only the Boyle's law

d)

A gas which doesn't obey the Charles' law

3.

Which law the following relation describes

PV= a constant

a)

Charles's law

b)

Boyle's law

c)

Both the above

d)

Avogadro's law

4.

Identify the graph which describe the Charles' law

a)
b)
c)
5.

A sample of helium gas has a volume of 520cm3 at 1000C. Calculate the temperature at which the volume will become 250cm3. Assume the pressure to be constant

a)

236.45K

b)

101.23K

c)

179.33K

6.

Which among the following is the equation for Avogadro's law

a)

P1V1=P2V2

b)

T=k*V

c)

V1N1=V2N2

d)

V1/n1=V2/n2

7.

What is the value of R in calK-1mol-1

a)

8.314

b)

0.0821

c)

8.314*107

d)

1.987

8.

What is the characteristic of elastic collisions?

a)

Loss of energy during the collision

b)

No loss of energy during the collision

c)

loss of matter

9.

What is Most probable velocity in gases

a)

velocity possessed by maximum number of molecules

b)

velocity possessed by fast moving particles

c)

velocity possessed by slow moving particles

10.

What is the significance of area under Maxwell-Boltzmann curve

a)

The area will give the maximum fraction of molecules at a particular temperature

b)

It will give the total number of molecules in the gas

c)

it is a measure of molecules with high velocity

d)

It is an indication of probability of molecules

11.

What is the equation for rms velocity

a)

8RTπM\sqrt{\frac{8RT}{\pi M}}

b)

3RTM\sqrt{\frac{3RT}{M}}

c)

2RTM\sqrt{\frac{2RT}{M}}

12.

How rms velocity is related to average velocity?

a)

83πμ\sqrt{\frac{8}{3\pi}}\mu

b)

23μ\sqrt{\frac{2}{3}}\mu

c)

3.5μ3.5\mu

13.

Which quantity is used to show the extent of variation of real gases from ideal behavior

a)

compressibility factor

b)

partial pressure

c)

inversion temperature

d)

continuity of state

14.

what is the form of van der Waal's equation at high pressures

a)

PV=nRT

b)

P(V-b)=RT

c)

(P+a/V2)(V-b)=nRT

d)

continuity of state