A. Vapor pressure at dry bulb temperature
B. Total pressure
C. Both A. and B.
D. Neither A. nor B.
Related Mcqs:
- The ratio of existing moles of vapor per mole of vapor free gas to the moles of vapor that would be present per mole of vapor free gas, if the mixture were saturated at the existing temperature & pressure, is termed as the_____________________?
A. Relative humidity
B. Relative saturation
C. Percentage saturation
D. None of these - Assuming applicability of ideal gas law, the pure component volume of the vapor in a saturated gas can be calculated from theoretical relationship. The volumetric composition of a vapor saturated gas is independent of the___________________?
A. Nature of the liquid
B. Nature of the gas
C. Temperature of the liquid
D. Total pressure - In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is__________________?
A. 180
B. 60.3
C. 720
D. 200 - A vapor whose partial pressure is less than its equilibrium vapor pressure is called a ______________ vapor?
A. Saturated
B. Supersaturated
C. Superheated
D. None of these - A vapor whose partial pressure is less than its equilibrium vapor pressure is called the _____________ vapor?
A. Saturated
B. Superheated
C. Unsaturated
D. Dry gaseous - 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 - 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_________________?
A. PvB
B. xB.PvB
C. (Patm – Pvw)xB
D. xB.Patm - The gravimetric (i.e., by weight) composition of a vapor saturated gas is independent of the_______________?
A. Nature of both the gas & the liquid
B. Temperature
C. Total pressure
D. None of these - 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. 80
C. 79.62
D. 78.51 - In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the________________?
A. Total pressure
B. Absolute humidity at a given temperature
C. Both A. and B.
D. Neither A. nor B.
