When pressure is applied on the system, ice ↔ water, then_________________?

Related Mcqs:

1. 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

2. 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

3. Molar heat capacity of water in equilibrium with ice at constant pressure is __________ Kcal/kg mole. °K___________________?

   A. 0
   B. ∞
   C. 50
   D. 100

4. Molar heat capacity of water in equilibrium with ice at constant pressure is_____________________?

   A. 0
   B. ∞
   C. 1
   D. None of these

5. The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the right. When relative humidity of moist air is 100%, then_________________?

   A. Wet bulb temperature=dry bulb temperature
   B. Wet bulb temperature=dew point temperature
   C. Saturation temperature=dew point temperature
   D. All ‘A’, ‘B’ & ‘C’

6. For water at 300°C, it has a vapour pressure 8592.7 kPa and fugacity 6738.9 kPa Under these conditions, one mole of water in liquid phase has a volume of 25.28 cm3 and that in vapour phase in 391.1 cm3.Fugacity of water (in kPa) at 9000 kPa will be__________________?

   A. 6738.9
   B. 6753.5
   C. 7058.3
   D. 9000

7. Degree of freedom of the system ice-water-vapour will be ________________?

   A. 0
   B. 1
   C. 2
   D. 3

8. The number of degrees of freedom for a mixture of ice and water (liquid) are ____________________?

   A. 3
   B. 2
   C. 1
   D. 0

9. At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is__________________?

   A. 1.572
   B. 1.9398
   C. 3.389
   D. 4.238

10. Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is____________________?

    A. 10 atm-1
    B. 105 atm-1
    C. 10 (dimensionless)
    D. 105 (dimensionless)