Vapor pressure of a solution is proportional to (where, Sv and St are mole fraction of solvent and solute respectively) ?

Byadmin March 12, 2019August 30, 2021

Vapor pressure of a solution is proportional to (where, Sv and St are mole fraction of solvent and solute respectively) ?

A. Sv
B. 1/St
C. St
D. 1/Sv

Stoichiometry

The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?

The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?

A. 0.07
B. 0.09
C. 0.11
D. 0.13

Read More The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?
Stoichiometry

A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be _____________ kgf/cm2 ?

A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be _____________ kgf/cm2 ?

A. 1
B. 2
C. 4
D. 8

Read More A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be _____________ kgf/cm2 ?
Stoichiometry

Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?

Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?

A. Chrome or magnesite
B. Silicon carbide
C. Silica
D. Low duty fireclay

Read More Lower wall courses of soaking pits are made of _____________ bricks to avoid the action of molten slag & scale?
Stoichiometry

Volume occupied by one gm mole of a gas at S.T.P. is ____________________?

Volume occupied by one gm mole of a gas at S.T.P. is ____________________?

A. 22.4 litres
B. 22400 litres
C. 22.4 c.c
D. 359 litres

Read More Volume occupied by one gm mole of a gas at S.T.P. is ____________________?
Stoichiometry

The total number of atoms in 8.5 gm of NH3 is _______________ × 1023?

The total number of atoms in 8.5 gm of NH3 is _______________ × 1023?

A. 9.03
B. 3.01
C. 1.204
D. 6.02

Read More The total number of atoms in 8.5 gm of NH3 is _______________ × 1023?
Stoichiometry

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

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

A. Be reduced to 1/4th
B. Increase four times
C. Increase two times
D. None of these

Read More If the pressure of a gas is reduced to half & its absolute temperature is doubled, then the volume of the gas will_________________?

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