## On mixing 56 gm of CaO with 63 gm of HNO3, the amount of Ca(NO3)2…

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# Stoichiometry

## Atmospheric pressure corresponds to a hydrostatic head of_________________?

Atmospheric pressure corresponds to a hydrostatic head of_________________? A. 13.6 cms of HgB. 34 ft ofH2O C. 1 metre of H2O D. 13.6 metres of Hg

## The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is…

The density of a gas ‘X’ is twice that of another gas ‘Y’. If the molecular weight of gas ‘Y’ is ‘M’; then the molecular weight of the gas ‘X’ will be________________? A. 2M B. M/2 C. M D. M/4

## Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its…

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? A. 80.38 B. 80C. 79.62 D. 78.51…

## Clausius Clapeyron equation applies to the _____________ process?

Clausius Clapeyron equation applies to the _____________ process? A. Sublimation B. Melting C. VaporisationD. All A., B. & C.

## 80 kg of Na2SO4 (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution…

80 kg of Na2SO4 (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na2SO4 .10H2O crystals separate out. The weight fraction of Na2SO4 in the remaining solution…

## The viscosity of water at room temperature may be around one ___________________?

The viscosity of water at room temperature may be around one ___________________? A. Centipoise B. Poise C. Stoke D. Both B. & C.

## _________________ chart is a graph related to Antoine equation ?

_________________ chart is a graph related to Antoine equation ? A. OstwaldB. Cox C. Mollier’s D. Enthalpy-concentration

## The molar composition of a gas is 10% H2, 10% O2, 30% CO2 and balance H2O. If 50% H2O condenses, the…

The molar composition of a gas is 10% H2, 10% O2, 30% CO2 and balance H2O. If 50% H2O condenses, the final mole percent of H2 in the gas on a dry basis will be_______________? A. 10% B. 5% C. 18.18%D. 20%…

## The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen…

The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be _____________ times? A. 1/2 B. 4C. √2 D. 1/4

## If a solution of eutectic composition is cooled, _______________ reaching the eutectic temperature ?

If a solution of eutectic composition is cooled, _______________ reaching the eutectic temperature ? A. The solvent begins to freeze out even beforeB. It will undergo no change until C. It will not solidify even on D. None of these…