The following information is given for n-pentane at 1 atm: boiling point - 36.20 Degree C Delta H_vap(36.20 Degree C) = 357.6 J/g melting point = -129.70 Degree C Delta H_fus(-l 29.70 Degree C) =116.7 J/g specific heat gas = 1.650 J/g Degree C specific heat liquid = 2.280 J/g Degree C A 26.20 g sample of liquid n-pentane .s initially at -73.30 Degree C. If the sample is heated at constant pressure (P = 1 atm). kJ of energy is needed to raise the temperature of the sample to 48.90 Degree C.
A 23.20 g sample of liquid n-pentane is initially at -62.30 °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 58.10 °C.
2.) The following information is given for water, H2O, at 1 atm:
boiling point = 100 °C
Hvap(100 °C) = 40.7 kJ/mol
melting point = 0.00 °C
Hfus(0.00 °C) = 6.01 kJ/mol
specific heat liquid = 4.18 J/g°C
At a pressure of 1 atm, what is H in kJ for the process of condensing a 43.2 g sample of gaseous water at its normal boiling point of 100 °C.
3.) The following information is given for benzene, C6H6, at 1 atm:
boiling point = 80.1 °C
Hvap(80.1 °C) = 30.7 kJ/mol
melting point = 5.50 °C
Hfus(5.50 °C) = 9.95 kJ/mol
specific heat liquid = 1.74 J/g°C
At a pressure of 1 atm, _____ kJ of heat are needed to vaporize a 47.4 g sample of liquid benzene at its normal boiling point of 80.1 °C.