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Stoichiometry

Stoichiometry
A vapor that exists above its critical temperature is termed as a __________ vapor.

Saturated
Sub-cooled
Unsaturated
Gaseous

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Stoichiometry
Na₂SO₄. 10H₂O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na₂SO₄. The final concentration of the solute in the solution is 10%. The weight of crystals is

45.35
58.65
32.2
20

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Stoichiometry
Cp/Cv for monoatomic gases is

1.44
1.99
1
1.66

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Stoichiometry
A gas at 0°C is cooled at constant pressure until its volume becomes half the original volume. The temperature of the gas at this state will be

-273°C
- 136.5°K
0°K
-136.5°C

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Stoichiometry
Real gases approach ideal behaviour at

Low pressure & low temperature
Low pressure & high temperature
High pressure & high temperature
High pressure & low temperature

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Stoichiometry
With increase in the temperature of pure (distilled) water, its

PH decreases and pOH increases
PH and pOH both increases
POH decreases and pH increases
POH and pH both 4ecreases

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