Question

1.Explain why pure liquids and solids can be ignored while writing the equilibrium constant expression?

2. Which one can act as Arrhenius Acid ? [1]
(a) NH3 (b) H2O (c) HCl (d) C6H5OH

3.State LeChatelier’s Principle?
4.Name the three group into which chemical equilibrium can be classified.
5. Hydrolysis of sucrose gives, Sucrose + water Glucose + Fructose Equilibrium constant, Kc for the reaction is 3x1011 at 300 K. Calculate G at 300 K?
6. For the equilibrium, The value of equilibrium constant,Kc is 4.30 x 10-6 at 1069 K. calculate the Kp for the reaction at this temperature?
7. Write a relation between ΔG and Q and define the meaning of each term and answer the following : (a) Why a reaction proceeds forward when Q < K and no net reaction occurs when Q = K.
(b) Explain the effect of increase in pressure in terms of reaction quotient Q. for the reaction : CO (g) + 3H2 (g) -> CH4 (g) + H2O (g)
8. On the basis of Le Chatelier principle explain how temperature and pressure can be adjusted to increase the yield of ammonia in the following reaction. N2 (g) + 3H2 (g) - 2NH3 (g) Δ H = – 92.38 kJ mol–1 What will be the effect of addition of argon to the above reaction mixture at constant volume?
9. Following data is given for the reaction:
CaC03(s) → CaO(s) + C02(g)
∆fH° [CaO(s)] = -635.1 kJ mol–1
∆fH° [CO2(g)] = -393.5 kJ mol–1
∆fH° [CaC03(s)] = -1206.9 kJ mol–1
Predict the effect of temperature on the equilibrium constant of the above reaction.
10. Consider the reaction :
2SO2 (g)+O2 (g) 3SO3 (g)
Indicate the direction in which the equilibrium will shift when :
temperature is increased.
pressure is decreased.
an inert gas is added at constant Volume and
inert gas is added at constant pressure?


PLEASE ANSWER, IN URGENT NEED OF ANSWERS​

Answer 1

bhute Chhota Question hai........

Answer 2

Answer:

Ans.1-the concentration of pure solid or liquid remain almost same. i. e. it changes by very very small fraction, so their concentration is ignored while writing expression of equilibrium constant.