Short Questions
Q1. Write an equilibrium equation of monoatomic
carbon and a molecule of oxygen as reactant and carbon monoxide as product.
Q2. State
law of mass action. What is active mass? How is the active mass is represented?
Q3. Define chemical
equilibrium state with examples. Why chemical equilibrium is dynamic?
Q4. Outline the
characteristics of reversible reaction.
Q5. Distinguish
between reversible and irreversible reactions.
Q6. Why equilibrium
constant may or may not have unit? Justify with example.
Q7. How direction
of a reaction can be predicted if Kc is known to you.
Q8. Write equilibrium
constant expression for the following equations:
N2(g) + 2O2(g)⇌ 2NO2(g)
2NO2(g) ⇌ N2O4(g)
PCl3(g) + Cl2(g) ⇌ PCl5(g)
2SO2(g) + O2(g) ⇌ 2SO3(g)
N2(g) + 3H2(g) ⇌ 2NH3(g)
H2(g) + Br2(g) ⇌ 2HBr(g)
H2(g) + I2(g) ⇌ 2HI(g)
CO(g) + 3H2(g) ⇌ CH4(g) + H2O(g)
Q9.Point out the
coefficients of each in the following hypothetical reactions:
2A + 3B ⇌ 4C + 2D
2M + 4N ⇌ 5O
4X ⇌ 2Y + 3Z
Q10.What do you mean by
the equilibrium constant, reaction quotient, extent of a reaction, forward
reaction, backward reaction?
Long Questions
Q1. Describe
dynamic equilibrium with two examples
Q2.State
law of mass action. Derive an expression for equilibrium constant for a general
reaction.
Q3. How can
you predict the following stages of a reaction by comparing the values of Kc
and Qc
(i) Net reaction proceeds in forward
direction
(ii)net reaction proceeds in reverse
direction
Q4. Describe
the characteristics of equilibrium constant
Q5. Predict which system at equilibrium will
contain maximum amount of product and which system will contain maximum amount
of reactant?
(a)2CO2(g)⇌2CO(g) + O2(g) Kc (927oC) = 3.1 x 1018
(b) 2O3(g) ⇌ 2O2(g) Kc (298 K) = 5.9 x 1055
Q6. Write
down the macroscopic characteristics of dynamic equilibrium.
this is great
ReplyDelete