An incorrect statement about equilibrium among the following is:

 1 Equilibrium is possible only in a closed system at a constant temperature. 2 All measurable properties of the system remain constant. 3 All the physical processes stop at equilibrium. 4 The opposing processes occur at the same rate and there is a dynamic but stable condition.
Subtopic:  Introduction To Equilibrium |
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For the given reaction:
H2NCOONH4 (s) $$\rightleftharpoons$$ 2NH3 (g) + CO2 (g),
total pressure at equilibrium is found to be 18 atmospheres. The value of Kp for the above equilibrium will be:

1. 72 atm3

2. 144 atm3

3. 432 atm3

4. 864 atm3

Subtopic:  Introduction To Equilibrium |
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Identify that is NOT an example of heterogeneous equilibrium:

 1 Equilibrium between water vapour and liquid water in a closed container 2 Equilibrium attained during acid catalysed hydrolysis of ethyl acetate 3 Equilibrium between solid Ca(OH)2 and its saturated solution 4 Equilibrium attained on heating solid CaCO3 in a closed container
Subtopic:  Introduction To Equilibrium |
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P, Q, and R represent substances involved in a gaseous reaction.
The equilibrium constant (Kc ) and the sign of the enthalpy change for the reaction are:

$$K_c = \frac{[P]^2}{[Q][R]3}~~~~~~\Delta H ~ is ~negative$$

Assuming that all other conditions remain constant, a change in which factor results in an increase of the value of the equilibrium constant, Kc?

1. an increase in pressure
2. use of a suitable catalyst
3. a decrease in temperature
4. an increase in temperature
Subtopic:  Introduction To Equilibrium |
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For the reaction, A+B 3C at 25$°$ C, a 3 litre vessel contains 1, 2, and 4 mole of A, B and C respectively. If Kc for the reaction is 10, then the reaction will proceed in:

1. forward direction

2. backward direction

3. in either direction

4. in equilibrium

Subtopic:  Introduction To Equilibrium |
68%
From NCERT
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