4

0.13

5

+13.9 kj

-13.9 kj

C. +13.9 kj

4

0.037

1.37

0.140

5.337

4

# Equilibrium constant changes with

time

temperature

pressure

both temperature and concentration

4

0.05

50

0.1

25 RT

4

20

0.56

30

0.02

4

571.20

47.80

371.20

59.543

4

50

50.4

0.0205

0.205

4

# A chemical reaction $P⇋Q$ is said to be in equilibrium when

Rate of conversion of P to Q is the same as that of Q to P

P and Q are present in equimolar ratio

P has completely changed to Q

35% of P is changed to Q

4

0.13

5

+13.9 kj

-13.9 kj

4

# The chemical system in equilibrium is not affected by

change in the concentration of products

increase in the concentration of reac-tants

changing the temperature

4

# The reaction ${H}_{2}+{I}_{2}⇌$2HI is at equilibrium at 298 K 1 mole of ${N}_{2}$gas is introduced in the reaction chamber at constant temperature and constant volume. At this:

state of equilibrium will remain unaffected

more of HI will be obtained

equilibrium constant will change

more of HI dissociate

4

32

12.8

48

16

4

# Which of the following is correct ?

${K}_{p}={K}_{c}{\left(RT\right)}^{∆n}$

${K}_{p}.{K}_{c}=\sqrt{RT}$

${K}_{p}={K}_{c}.RT$

${K}_{p}={K}_{c}.\sqrt{∆nRT}$

4

# For the reaction ${H}_{2}+{I}_{2}⇋2HI$ the equilibrium constant (K) is

$\frac{{\left[HI\right]}^{2}}{{\left[{H}_{2}\right]}^{2}\left[{I}_{2}\right]}$

$\frac{\left[HI\right]}{\sqrt{\left[{H}_{2}\right]}\sqrt{\left[{I}_{2}\right]}}$

$\frac{\left[{H}_{2}\right]\left[{I}_{2}\right]}{{\left[H+I\right]}^{2}}$

$\frac{{\left[HI\right]}^{2}}{\left[{H}_{2}\right]\left[{I}_{2}\right]}$

4

4

0.325 atm

3.2 atm

4.6 atm

0.65 atm

4

# Once the equilibrium is reached under given condition:

Cone, remains the same in spite of the change in temperature

Cone, of all the substances presents do not change

Cone, of reactants remairfs same

Cone, of products remains same

4

0.712

0.75

71.5

31.5

4

Physical

Heterogeneous

Chemical

Homogeneous

4

0.0174

0.174

0.0348

1.74

4

# Reaction between silver nitrate and sodium chloride goes to completion because

the reaction is instantaneous

silver nitrate is insoluble in water

silver chloride is sparingly soluble in water

solubility of silver nitrate increases with sodium chloride

4

0.09

0.90

1.1

2.2