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Pick out the wrong statement.

'Reduced temperature' of a substance is the ratio of its existing temperature to its critical temperature, both expressed on celsius scale.
'Reduced pressure' is the ratio of the existing pressure of a substance to its critical pressure.
'Reduced volume' is the ratio of the existing molal volume of a substance to its critical molal volume.
none of these.

Correct Answer: 'Reduced temperature' of a substance is the ratio of its existing temperature to its critical temperature, both expressed on celsius scale.

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