A. Raoult’s
B. Henry’s
C. Amagat’s
D. None of these
CHEMICAL ENGINEERING
______________ equation gives the effect of temperature on heat of reaction ?
A. Kirchoff’s
B. Maxwell’s
C. Antoine
D. Kistyakowsky
Addition of a non-volatile solute to a pure solvent ____________________?
A. Increases its freezing point
B. Increases its boiling point
C. Decreases its freezing point
D. Both B. and C.
If the partial pressure of the solvent in the vapor phase is equal to the vapor pressure of the solvent at that temperature, then the system is said to be at its___________________?
A. Bubble point
B. Saturation temperature
C. Dew point
D. Both B. and C.
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
1 torr is equal to ______________ mm Hg column?
A. 1
B. 0.1
C. 10
D. 1000
The quantity of heat required to evaporate 1 kg of a saturated liquid is called __________________?
A. Specific heat
B. 1 Kcal
C. Sensible heat
D. Latent heat
Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ____________________?
A. Do not lose energy on collision
B. Are above the inversion temperature
C. Do not exert attractive force on each other
D. Do work equal to loss in kinetic energy
Which of the following is not a colligative property ?
A. Osmotic pressure
B. Depression of freezing point
C. Lowering of vapor pressure
D. None of these
Total energy at a point comprises of _____________ energy?
A. Potential & kinetic
B. Pressure
C. Internal
D. All A., B. & C.