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Necessary Conditions for Equilibrium

Which of the ...

Question

Which of the following conditions represents an equilibrium?

A

Melting of ice in an open vessel, temperature of ice is constant

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B

Few drops of water is present along with air inside a balloon, temperature of balloon is constant

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C

Water is boiling in an open vessel over stove, temperature of water is constant

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D

None of the above

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Solution

The correct option is B Few drops of water is present along with air inside a balloon, temperature of balloon is constant
Equilibrium can only be achieved in closed vessel. System (b) is closed so an equilibrium will be established between water (liquid) and water (vapour) phase.
In (a) and (c), equilibrium will not be established.

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Similar questions

Q. Assertion (A): Water boiling in an open vessel at a fixed temperature is an example of physical equilibrium.
Reason (R): Temperature does not change during the process of boiling. Which of the following is correct?

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Necessary Conditions for Equilibrium

Standard XII Chemistry

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