Statement-1
Evaporation takes place from the surface of a liquid.
Statement-2
The molecules at the surface have less attractive energy than those inside the liquid.

Statement-1 is true, Statement-2 is true and Statement-2 is the correct explanation for Statement- 1

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Statement-1 is true, Statement-2 is true but Statement-2 is not the correct explanation for Staement-1

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Statement-1 is true, Statement-2 is false.

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Statement-1 is false, Statement-2 is true.

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Solution

The correct option is A Statement-1 is true, Statement-2 is true and Statement-2 is the correct explanation for Statement- 1
Evaporation is a surface phenomenon.
Particles present on the surface of a liquid only face attraction from one side (the side containing fluid particles) and surface tension. Where as particles inside the liquid would face attractive forces from all around, making it difficult for such particles to evaporate or escape.
Hence the statement is true, explanation is true and the explanation is the correct explanation for the statement.

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Similar questions

- 1 :

0 < x < y \Rightarrow {log}_{a} x > {log}_{a} y

a > 1

- 2 :

a > 1, {log}_{a} x

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} = (n + 2) 2^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} x^{r} = (1 + x)^{n} + n x (1 + x)^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} = (n + 2) 2^{n - 1} .

\sum_{r = 0}^{n} (r + 1)^{n} C_{r} x^{r} = (1 + x)^{n} + n x (1 + x)^{n - 1} .

I

\to L = I \to ω

II

\to τ = \frac{d \to L}{d t}

N H_{3}

P H_{3}

N H_{3}

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