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Assertion : Ice hArr water, if pressure...

Assertion : Ice `hArr` water, if pressure is applied water will evaporate.
Reason : Increase of pressure pushes the equilibrium towards the side in which number of gaseous mole decreases.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states: "Ice `hArr` water, if pressure is applied water will evaporate." - When ice melts, it converts to water. The process of melting ice to water is an equilibrium process. - Applying pressure to the system can affect the state of matter. According to the phase diagram of water, increasing pressure can lower the melting point of ice, causing it to melt into water more readily. - However, the assertion implies that applying pressure will cause water to evaporate. This is misleading because increasing pressure generally favors the liquid phase over the gas phase, especially for water, which has a higher density in its liquid state compared to its gaseous state. ### Conclusion for Assertion: The assertion is **false** because applying pressure does not promote the evaporation of water; instead, it can favor the liquid state. ### Step 2: Analyze the Reason The reason states: "Increase of pressure pushes the equilibrium towards the side in which the number of gaseous moles decreases." - According to Le Chatelier's Principle, if the pressure of a system at equilibrium is increased, the equilibrium will shift towards the side with fewer moles of gas. - In a general reaction, if we have more gaseous products than reactants, increasing pressure will shift the equilibrium to the left (towards the reactants) where there are fewer gaseous moles. - This principle applies to reactions involving gases but does not directly relate to the melting of ice or the evaporation of water, as these processes do not involve a change in the number of gaseous moles. ### Conclusion for Reason: The reason is **true** because it accurately describes the effect of pressure on gaseous equilibria. ### Final Conclusion: - The assertion is false, and the reason is true. Therefore, the correct answer would be that the assertion is incorrect while the reason is correct.

To solve the question, we need to analyze both the assertion and the reason provided. ### Step 1: Analyze the Assertion The assertion states: "Ice `hArr` water, if pressure is applied water will evaporate." - When ice melts, it converts to water. The process of melting ice to water is an equilibrium process. - Applying pressure to the system can affect the state of matter. According to the phase diagram of water, increasing pressure can lower the melting point of ice, causing it to melt into water more readily. - However, the assertion implies that applying pressure will cause water to evaporate. This is misleading because increasing pressure generally favors the liquid phase over the gas phase, especially for water, which has a higher density in its liquid state compared to its gaseous state. ...
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