`Delta_(vap)H = 30 kJ mol^(-1)` and `Delta_(vap)S = 75Jmol^(-1)K^(-1)`. Find the temperature of vapour, at `1` atm.

Options

A. `400K`
B. `350K`
C. `298K`
D. `250K`

Explanation

To find the temperature of vapor at 1 atm given the enthalpy of vaporization (\( \Delta_{vap}H \)) and the entropy of vaporization (\( \Delta_{vap}S \)), we can use the relationship between these thermodynamic quantities at equilibrium.

### Step-by-Step Solution:

1. **Understand the Given Values**:
- \( \Delta_{vap}H = 30 \, \text{kJ/mol} \)
- \( \Delta_{vap}S = 75 \, \text{J/mol·K} \)

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