🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs361
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 ?
A1
B2
C4
D8
362
Hess’s law of constant heat summation is based on conservation of mass. It deals with ___________________?
AEquilibrium constant
BReaction rate
CChanges in heat of reaction
DNone of these
363
In a neutral solution _________________?
AH+ ions are absent
BOH- ions are absent
CBoth H+ and OH- ions are present in very small but equal concentration
DNone of these
364
Number of gm moles of solute dissolved in one liter of a solution is called its____________________?
AEquivalent weight
BMolarity
CMolality
DNormality
365
A gaseous mixture contains 14 kg of N2, 16 kg of O2 and 17 kg of NH3. The mole fraction of oxygen is__________________?
A0.16
B0.33
C0.66
D0.47
366
Vapor pressure of a solution is proportional to (where, Sv and St are mole fraction of solvent and solute respectively) ?
ASv
B1/St
CSt
D1/Sv
367
The value of gas constant ‘R’ is ______________ kcal/kg.mole.°C?
A2.79
B1.987
C3.99
DNone of these
368
In a binary liquid system, the composition expressed as _______________ is independent of the temperature & pressure?
A,
B&
CKg-mole of solute/1000 kg of solvent
DAll
369
Unit of mass velocity is___________________?
Akg/m.hr
Bkg/m2.hr
Ckg/hr
Dkg/m2
370
Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are pv B and pv w respectively. The partial pressure of benzene in air-vapour mixture is_________________?
APvB
BxB.PvB
C(Patm – Pvw)xB
DxB.Patm