Assertion(A): The compressibility factor 'Z' is equal to the ratio of the molar volume of a real gas and the molar volume of an ideal gas.
Reason(R): 'Z' depends upon the pressure of real gas.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Compressibility Factor |
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Assertion(A): The compressibility factor for hydrogen varies with pressure with a positive slope at all pressures.
Reason(R): Even at low pressures, repulsive forces dominate in hydrogen gas.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R is not the correct explanation of A.
3. A is true and R is false.
4. A and R both are false.
Subtopic:  Compressibility Factor |
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Given below are two statements: 

Assertion (A): At constant temperature, pV vs p plot for real gases is not a straight line.
Reason (R): At high pressure, all gases have Z>1 but at an intermediate pressure most gases have Z<1.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.

Subtopic:  Compressibility Factor |
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A: At Boyle's temperature, the compressibility factor of gas approaches unity.

R: At Boyle's temperature the real gas obeys ideal gas law.

1. Both assertion & reason are true and the reason is the correct explanation of the assertion.

2. Both assertion & reason are true but the reason is not the correct explanation of the assertion.

3. Assertion is a true statement but reason is false.

4. Both assertion and reason are false statements. 

Subtopic:  Compressibility Factor |
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 In the given figure, the curve representing an ideal gas is-

    

1.  B only

2.  C and D only

3.  E and F only 

4.  A and B only

Subtopic:  Compressibility Factor |
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Consider the following graph:

  

The curve that represents CO2 gas is - 

1. X

2. Y

3. Both X and Y 

4. Cannot predict from the graph

Subtopic:  Compressibility Factor |
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