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Stoichiometry

Stoichiometry
Solutions having the same osmotic pressure are called __________ solutions.

Dilute
Saturated
Ideal
Isotonic

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Stoichiometry
In case of vapor-liquid equilibria, which of the following does not account for gas phase deviation from ideality?

None of these
Use of equation of state
Fugacity co-efficient
Activity co-efficient

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Stoichiometry
1 BTU/lb.←°F is equivalent to __________ kcal/kg.°C.

1.987
4.97
2.42
1

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Stoichiometry
CaCO₃ contains __________ percent of Ca by weight.

96
40
12
48

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Stoichiometry
Which of the following ratios defines the recycle ratio in a chemical process?

Recycle stream/gross feed stream
Recycle stream/fresh feed stream
None of these
Gross feed stream/recycle feed stream

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Stoichiometry
A gas at 0°C was subjected to constant pressure cooling until its volume became half the original volume. The temperature of the gas at this stage will be

0°C
-136.5°K
0°K
-136.5°C

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