Dominance of strong repulsive forces amo...

Dominance of strong repulsive forces among the molecules of the gas (`Z =` compressibility factor)

A

Depends on Z and indicated by Z = 1

B

Depends on Z and indicated by `Z gt 1`

C

Depends on Z and indicated by `Z lt 1`

D

is independent of Z .

Text Solution

Verified by Experts

The correct Answer is:

B

`Z gt ` 1 shows that the gas is less compressible than expected . This is due to dominance of strong repulsive forces among the molecules .

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Knowledge Check

Domianance of strong repulsive forces among the molecules of the gas (Z=compressibility factor)

A

depends on Z and indicated by Z=1

B

depends on Z and indicated by `Z gt 1`

C

depends on Z and indicated by `Z gt 1`

D

is independent of Z

Dominance of strong attractive forces among the molecules of the gas :

A

Depends of Z and indicates that Z=1

B

Depends of Z and indicates that `Z gt 1`

C

Depends of Z and indicates that `Z lt 1`

D

Is independent of Z

For H_(2) gas the compressibility factor Z=PV/nRT is

A

Equal to 1

B

Equal to 0

C

Always greater than 1

D

Initially less than 1 and then becomes greater than 1 at high pressures

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