$3\mathrm{.}3.$ Densities of solid phenol and liquid phenol are $1,072$ and $1,056\frac{g}{m}l$; enthalpy of melting of phenol is $24,93ca\frac{l}{g}$; crystallization temperature of phenol at $1$atm is $41C.$ Determine the melting point of phenol at $500$atm. Answer: $43,15C$

$3\mathrm{.}4.$ At $0C,$ enthalpy of fusion of ice water is $1434,6ca\frac{l}{m}ol.$ Volume of water in solid and liquid form are $1,098$ and $1,001m\frac{l}{g},$ respectively. Determine the $d\frac{P}{d}T$ for the melting process and the melting temperature of ice water at $4$atm. Answer: $T_{\text{f}\text{u}\text{s}\text{i}\text{o}\text{n}(4\text{a}\text{t}\text{m})}=-0,0243C$