Chemical Engineering - Stoichiometry

11. 

If 1 Nm3 of O2 contains 'N' number of molecules, then number of molecules in 2Nm3 of SO2 will be

A. N
B. N/2
C. 2N
D. 4N

Answer: Option C

Explanation:

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12. 

The most convenient way of expressing solution concentration is in terms of

A. mole fraction
B. normality
C. molality
D. molarity

Answer: Option D

Explanation:

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13. 

Unit of mass velocity is

A. kg/m . hr
B. kg/m2.hr
C. kg/hr
D. kg/m2

Answer: Option B

Explanation:

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14. 

With increase in temperature, the surface tension of water

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

Answer: Option B

Explanation:

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15. 

Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of

A. mixing
B. adsorption
C. wetting
D. complete wetting

Answer: Option D

Explanation:

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