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Each question contains STATEMENT-I(Asser...

Each question contains STATEMENT-I(Assertion) and STATEMENT-2(Reason). Read the statement carefully and mark the correct answer according to the instruction given below:
STATEMENT - 1 : An increase in surface area increases the rate of evaporation.
STATEMENT - 2 : Stronger the intermolecular attaction force, faster is the rate of evaporation at a given temperature.

A

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

B

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

C

If the assertion is true but the reason is false.

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both statements provided: **Statement 1:** An increase in surface area increases the rate of evaporation. **Statement 2:** Stronger the intermolecular attraction force, faster is the rate of evaporation at a given temperature. ### Step-by-Step Solution: 1. **Understanding Statement 1:** - Evaporation is a surface phenomenon, meaning it occurs at the surface of a liquid. - When the surface area of a liquid increases, there are more molecules at the surface available to escape into the gas phase. - Therefore, an increase in surface area leads to an increase in the rate of evaporation. - **Conclusion:** Statement 1 is **True**. 2. **Understanding Statement 2:** - Intermolecular forces are the forces of attraction between molecules. - If the intermolecular forces are strong, the molecules are held together more tightly. - This means that the molecules at the surface will have a greater downward force of attraction, making it harder for them to escape into the gas phase. - Thus, stronger intermolecular forces would actually decrease the rate of evaporation. - **Conclusion:** Statement 2 is **False**. 3. **Final Evaluation:** - Since Statement 1 is true and Statement 2 is false, we can conclude that the correct answer is option C: "Assertion is true, but the reason is false."
To solve the question, we need to analyze both statements provided: **Statement 1:** An increase in surface area increases the rate of evaporation. **Statement 2:** Stronger the intermolecular attraction force, faster is the rate of evaporation at a given temperature. ### Step-by-Step Solution: ...
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