The following information is given for n-pentane at 1 atm: boiling point = 36.20 °C     Hvap(36.20 °C) = 357.6 J/g melting point = -129.7 °C   Hfus(-129.7 °C) = 116.7 J/g specific heat gas = 1.650 J/g °C   specific heat liquid = 2.280 J/g °C A 26.80 g sample of liquid n-pentane is initially at 2.30 °C. If the sample is heated at constant pressure (P = 1 atm), calculate the amount of energy in kJ needed to raise the temperature of the sample to 50.50 °C.

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