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CHEMISTRY QUIZ 23 ( CHEMICAL EQUILIBRIUM 1))

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Marks: 200

Q.   1

Chemical equilibrium is dynamic in nature because –

Q.   2

Which of the following statements is false in case of equilibrium state – 

Q.   3

At any moment before a reversible reaction attains equilibrium it is found that – 

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Q.   5

According to Law of Mass action, the rate of reaction is directly proportional to -

Q.   6

In a chemical equilibrium, the equilibrium constant is found to be 2.5. If the rate constant of backward reaction is 3.2 × 10–2 , the rate constant of forward reaction is -

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The equilibrium constant KC for the decomposition of PCl5 is 0.625 mole / lit at 300ºC. Then the value of KP is - 

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Dissociation of phosphorus pentachloride is favoured by –

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Factors affecting KC is/are -

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The role of catalyst in reversible reaction is-

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When a reversible reaction has reached the state of equilibrium -

Q.   47

During thermal dissociation of gas, the vapour density 

Q.   48

At a total pressure of 2 atmospheres, the number of moles of N2 ,H2 and NH3 in a gaseous mixture are 1,3 and 2. The partial pressure of NH3 in atmospheres is – 

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