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Assertion: Compressibility factor for hydrogen varies with pressure with positive slope at all pressures.

Reason: Even at low pressures, repulsive forces dominate for hydrogen gas

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not correct explanation of A

(c) A is true but R is false

(d) A and R are false

1 Answer

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Best answer

Correct option  (a) Both A and R are true and R is the correct explanation of A

Explanation:

In case of H2, compressibility factor increases with the pressure. At 273 K, Z > 1 which shows that it is difficult to compress the gas as compared to ideal gas. In this case, repulsive forces dominate.

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