Consider the following statements in respect of the Clausius-Clapeyron equation:
1. It points to one possible way of measuring thermodynamic temperature.
2. It permits latent heat of vaporization to be estimated from measurements of specific volumes of saturated liquid, saturated vapour and the saturation temperatures at two nearby pressures.
3. It does not apply to changes from solid to the liquid phase and from solid to the vapour phase.
Which of the statements given above are correct?
a. 1, 2 and 3 b. 1 and 2 only
c. 2 and 3 only d. 1 and 3 only