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Stoichiometry

Stoichiometry
Cp - Cv, for an ideal gas is equal to

R
2R
3R
R/2

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Stoichiometry
Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the

Temperature of the liquid
Total pressure
Nature of the liquid
Nature of the gas

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Stoichiometry
The vapor pressures of benzene and toluene are 3 and 4/3 atmospheres respectively. A liquid feed of 0.4 moles of benzene and 0.6 moles of toluene is vapourised. Assuming that the products are in equilibrium, the vapor phase mole fraction of benzene is

0.4
0.6
0.2
0.8

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Stoichiometry
Saturated molal absolute humidity of the vapor-gas mixture depends upon the

Total pressure
Neither A nor B
Vapor pressure at dry bulb temperature
Both A & B

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Stoichiometry
During a phase change process like sublimation, vaporisation, melting etc., the specific __________ does not change.

Enthalpy
Entropy
Gibbs free energy
Internal energy

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

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

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