Consider the following reaction.
; Kp= 10.1 at 400°C
If a reaction vessel at 400°C is filled with an equimolar mixture of CO and steam such that , the partial pressure of H2 at equilibrium is:
(a) | Cl2(g) ⇌ 2Cl(g) ; Kc = 5.0×10-39 mol/L |
(b) | Cl2(g) + 2NO(g) ⇌ 2NOCl(g) ; Kc =3.7×108 mol/L |
(c) | Cl2(g) + 2NO2(g) ⇌ 2NO2Cl(g) ; Kc=1.8 mol/L |
1. Only reaction (a)
2. Both reactions (a) and (b)
3. Only reaction (c)
4. Only reaction (b)
For the reaction, L/mol at 25°C. If the equilibrium concentration of O2 in air at 25°C is , the concentration of O3 would be:
Consider the following reaction:
If the reaction mixture contains 0.30 mol of CO, 0.10 mol of H2, and 0.02 mol of H2O, and an unknown amount of CH4 at equilibrium at 1300 K in a 1L flask, the concentration of CH4 in the mixture will be -
(Kc = 3.90 at 1300 K)
The concentration of hydrogen ion in a sample of soft drink is . The pH of the soft drink will be:
1. | 3.14
|
2. | 2.42
|
3. | 11.58
|
4. | 6.00 |
The pH of a sample of vinegar is 3.76. The concentration of H+ ions in the sample will be -
The pH value of a 0.01 M solution of an organic acid is 4.15. The pKa of the acid will be:
A solution containing 2 g of TlOH in 2 litres of water has a pH of?
(Atomic wt of Tl =204)
1. | 11.65 | 2. | 12.45 |
3. | 3.35 | 4. | 2.34 |
When 1mL of 13.6 M HCl is diluted with water to give 1 litre of solution, the pH of the resultant solution will be:
1. | 11.87 | 2. | 3.46 |
3. | 1.87 | 4. | 12.23 |
A 0.001 M aniline solution has a pH of:
(\(K_b = 4.27 \times 10^{-10}\))
1. | 6.19 | 2. | 7.81 |
3. | 8.34 | 4. | 9.81 |