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Stoichiometry

Stoichiometry
The quantity of heat required to evaporate 1 kg of a saturated liquid is called

Latent heat
Sensible heat
Specific heat
1 Kcal

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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

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

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Stoichiometry
1 BTU/ft³ is approximately equal to __________ kcal/m³.

1
9
4
252

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Stoichiometry
Pick out the wrong unit conversion of calorific value.

1 BTU/ft³ = 8.9 kcal/m³ = 0.038 MJ/m³
1 kcal/m³ = 0.1124 BTU/ft³
1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg
1 BTU/lb = 2.3 kcal/kg

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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
Activity co-efficient
Use of equation of state
Fugacity co-efficient

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Stoichiometry
Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity?Vapour pressure of water at 20°C is 17.5 mm Hg.

79.62
80
80.38
78.51

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