Gaseous State Test

Result

Gaseous State Test - 10

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Weekly Quiz Competition

Question 1
1 / -0

Statement-1: Absolute zero is a theoretically possible temperature at which the volume of a real gas becomes zero.

Statement-2: The total kinetic energy of the gas molecules is zero at this temperature.

A
Both Statement-1 and Statement-2 are true and Statement-2 is the correct explanation of Statement-1.

B
Both Statement-1 and Statement-2 are true and Statement-2 is not the correct explanation of Statement-1.

C
Statement-1 is true but Statement-2 is false.

D
Statement-1 is false but Statement-2 is true.

Solution

Absolute zero = -273.14°C, indicates that no substances can be cooled below it. It does not mean that volume of a real gas becomes zero, all gases liquefy and solidify before this temperature is reached.

The correct answer is: Statement-1 is false but Statement-2 is true.
Question 2
1 / -0

Pressure of a gas is the result of:

A
Molecular speed and mass

B
Molecular speed only

C
Molecular mass only

D
Intermolecular forces

Solution

Pressure of the gas is measured as the change in momentum of a single molecule; therefore it depends upon both the molecular mass and speed.

The correct answer is: Molecular speed and mass