Question:

The following information is given for n-pentane at 1 atm:

Last updated: 7/23/2022

The following information is given for n-pentane at 1 atm:

The following information is given for n-pentane at 1 atm: Tf = 36.20°C Tm-129.70°C Specific heat gas = 1.650 J/g °C Specific heat liquid = 2.280 J/g °C ΔHvap (36.20°C) = 357.6 J/g ΔHfus (-129.70°C) = 116.7 J/g A 46.30 g sample of liquid n-pentane is initially at -5.50°C. If the sample is heated at constant pressure (P = 1 atm), kJ of energy are needed to raise the temperature of the sample to 64.70°C.