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Stoichiometry

Q1:

Pick out the wrong statement.

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

B 'Reduced pressure' is the ratio of the existing pressure of a substance to its critical pressure.

C 'Reduced volume' is the ratio of the existing molal volume of a substance to its critical molal volume.

D none of these.

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

The wrong statement is: "Reduced volume is the ratio of the existing molal volume of a substance to its critical molal volume." The correct statement should be: "Reduced volume is the ratio of the existing volume of a substance to its critical volume." The reduced volume is a dimensionless quantity used in thermodynamics, particularly in the study of phase transitions. It is defined as the ratio of the actual volume of a substance to its critical volume. Therefore, the correct answer is: none of these.



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