Question # 1

Gases exert pressure on the walls of the container becasue the gas molecules.

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Collide with each other

Collide with walls of container

Have definite volume

Obey the gas laws

The molar volume of CO₂is maximum at

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STP (0°C and 1 atm)

127° C and 1 atm

0°C and 2 atm

273°C and 2 atm

The deviation of a gas from ideal behaviour is maximum at.

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-10 ^oC and 5.0 atm

-10 ^oC and 2.0 atm

100 ^oC and 2.0 atm

0 ^oC and 2.0 atm

Vapour pressure of liquid depends upon

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Amount of liquid

Surface area

Temperature

Size of container

The volume of a gas at 0 oC is 273 dm3, the pressure remaining constant. At which temperature its volume will be doubled.

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273 K

273 ^oC

546 ^oC

316 K

Gases of air, always remains in the random motion and do not settle due to.

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Elastic collision of gas molecules

Unequal number of different gas molecules

Difference impartial pressure of gas molecules

Difference in molecular masses of air gases

For a gas obeying Boyle's law if pressure is doubled, the volume becomes.

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Double

One half

Four times

Remains constant

If absolute temperature of the gas is doubled and the pressure is reduced to one half the volume the gas will.

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Remains uncharged

Increase four time

Reduce to 1/4

Be doubled

The number of molecules in one dm³of water is close to

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Normal temperature and pressure (S.T.P) of gas rafers to

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273 K and 76 mm Hg

273° C and 760 mm Hg

273 K and 760 mm Hg

273° C and 76 mm Hg

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Chemistry Fsc Part 1 Chapter 3 Online Test MCQs With Answers

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