Calculate the entropy change for vapourisation of water if latent heat of vapourisation for water is 540 cal/g. (`K_(b)` for water `=0.51 K. kg "mole"^(-1)`)

Options

A. 1.45 cal /mole -K
B. 26.3 cal /mole-K
C. 52.6 cal/mole-K
D. 1.87 cal/mole-K

Explanation

To calculate the entropy change for the vaporization of water, we will use the relationship between the latent heat of vaporization and the boiling temperature. The formula we will use is:

\[ \Delta S_v = \frac{\Delta H_v}{T_b} \]

Where:
- \(\Delta S_v\) = entropy change for vaporization
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