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Stoichiometry

Stoichiometry
1 torr is equal to __________ mm Hg column.

1
1000
0.1
10

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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

-136.5°C
0°C
0°K
-136.5°K

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Stoichiometry
Othmer chart is useful in estimating the heat of

Adsorption
Mixing
None of these
Wetting

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Stoichiometry
If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will

None of these
Increase two times
Increase four times
Be reduced to l/4th

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Stoichiometry
Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is

0.5
0.2
1.72
0.58

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Stoichiometry
Assuming that CO₂ obeys perfect gas law, calculate the density of CO₂ (in kg/m³) at 263°C and 2 atm.

4
1
2
3

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