Chemical Engineering - Stoichiometry

6. 

One Newton is equal to __________ dynes.

A. 102
B. 103
C. 104
D. 105

Answer: Option D

Explanation:

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7. 

A very dilute solution is prepared by dissolving 'x1' mole of solute in 'x2' mole of a solvent. The mole fraction of solute is approximately equal to

A. x1/x2
B. x2/x1
C. 1 - (x1/x2)
D. 1/x2

Answer: Option A

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8. 

An ideal gas can be liquified, because

A. its molecular size is very small.
B. its critical temperature is more than 0°C.
C. forces operative between its molecules are negligible.
D. it gets solidified directly without becoming liquid.

Answer: Option C

Explanation:

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9. 

The rate of material __________ is zero in case of a steady state system.

A. accumulation
B. production
C. input
D. generation

Answer: Option A

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10. 

A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the

A. atomic weight of the metal is 4.
B. equivalent weight of the metal is 4.
C. atomic weight of the metal is 2.
D. equivalent weight of the metal is 8.

Answer: Option B

Explanation:

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