heptane, C7H16, is the hydrocarbon given a value of 0 on the octane rating scale for gasoline.  Calculate the heat...

heptane, C7H16, is the hydrocarbon given a value of 0 on the octane rating scale for gasoline.  Calculate the heat needed to raise the temperature of 170 kilograms of liquid heptane from room temperature, 21 degrees celsuis, to gaseous heptane at 121 degrees celsius.  The boiling point of heptane is 98 degrees celsius.

specific heat of liquid heptane = 2.093 J/g-degrees celsius

heat of vaporization = 315 J/g

specific heat of heptane vapor = 2.384 J/g

Express your answer in kilojoules as three significant digits.