Page 2 - Microsoft Word - Home assignment-Equilibrium

Q21. What is the effect of increasing pressure on the equilibrium?

N 2(g) + 3H 2(g) 2NH 3(g)
10
-1
Q22. At 450 K, Kp = 2 x 10 bar for the given reaction at
equilibrium. What is Kc at this temperature?
2SO2(g) + O2(g) 2SO3(g)
Q23. What is the effect of (i)addition of H2, (ii)addition of CH3OH,
(iii)removal of CO, (iv)removal of CH3OH on the equilibrium?

2H2(g) + CO(g) CH3OH(g)
Q24. Consider the equilibrium:

PCl3(g) + Cl2(g) PCl5(g)
How would the following affect the position of equilibrium?

(i)addition of PCl3, (ii)removal of PCl5, (iii)decreasing in volume of
container, (iv)addition of Helium at constant volume.
Q25. Manufacture of NH3 is represented by the equation:

N 2(g) + 3H 2(g) 2NH 3(g) + heat
On the basis of this equation, deduce the optimum conditions for
best results of NH3.

-7
H
-8
Q26. Calculate P of 1 x 10 M HCl solution. (log 1.1 x 10 = 0.0414)
Q27. The P of a sample of vinegar is 3.76. Calculate the
H
concentration of H ion in it. Given Antilog (-3.76) = 1.737 x 10 .
-4
+
+
Q28. The concentration of H ion in a sample of soft drink is 3.8 x
-3
10 M. What is its P ? (log 3.8 x 10 = -2.42).
-3
H
Q29. The Pka of acetic acid and Pkb of ammonium hydroxide are
H
4.76 and 4.75 respectively. Calculate P of ammonium acetate
solution.
Q30. Hydrogen gas is obtained from the natural gas by partial
oxidation with steam as per the following endothermic reaction:

CH4(g) + H2O(g) CO(g) + 3H2(g)
(a)Write the expression for K p for the above reaction.
(b)How will the value of Kp and composition of equilibrium mixture
be affected by:

(i)increasing pressure, (ii)increasing temperature, (iii)using a
catalyst.