Use the Clausius-Clapeyron equation
"T_1(K) = 273.15+ 58.2 = 331.35 K"
"P_1 = 57.0 kPa"
"\\Delta H_{vap} = 29.82 kJ\/mol = 29820 J\/mol"
"P_2 = 101.325 kPa"
"R= 8.314 \\frac{J}{mol\\times K}"
"T_2= 349.9 K"
"T_2(^\\circ C) = 349.9-273.15 = 76.75 ^\\circ C"
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