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Stoichiometry

Stoichiometry
Total energy at a point comprises of __________ energy.

Pressure
Internal
All of these
Potential & kinetic

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Stoichiometry
One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The amount of water vapour condensed (in kg) is

1
0.1
0.065

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Stoichiometry
The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface. This statement pertaining to the solubility of gases in liquid is the __________ law.

Amgat's
Henry's
Raoult's
None of these

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Stoichiometry
Methane is mixed with stoichiometric proportion of oxygen and completely combusted. The number of additional specifications required to determine the product flow rate and composition is

3
2
1

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Stoichiometry
A car tyre of volume 0.057 m³ is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is

880
630
380
760

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Stoichiometry
The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol XM satisfies

0.5 < XM < 0.64
XM = 0.5
XM < 0.5
XM ≥ 0.64

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