# Chemical Engineering - Stoichiometry

### Exercise :: Stoichiometry - Section 1

31.

S.T.P. corresponds to

 A. 1 atm. absolute pressure & 15.5°C. B. 760 mm Hg gauge pressure & 15.5°C. C. 760 torr & 0°C. D. 101.325 kPa gauge pressure & 15.5°C.

Explanation:

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32.

With rise in pressure, the solubility of gases in solvent, at a fixed temperature

 A. increases B. decreases C. remains unchanged D. decreases linearly

Explanation:

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33.

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.

Explanation:

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34.

Vapor pressure of water at 100°C is about __________ bar.

 A. 0.1013 B. 1.013 C. 10.13 D. 101.3

Explanation:

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35.

At room temperature, the product [H+] [OH-] in a solution is 10-14 moles/litre. If, [OH-] = 10-6 moles/litre, then the pH of the solution will be

 A. 6 B. 8 C. 10 D. 12