Octane(C8H18) is a hydrocarbon found in crude oil. Thermochemical data for octane is provided below. The total change in enthalpy is 15.94 kJ when heating 0.2500 moles of octane from -70.00°C to 100.0°C. Determine the AHfusion. Melting point: -57.00 °C Boiling point: 126.0 °C J Csolid : 185.0 °C mol Ciquid: 254.0 J °C mol J C gas: 250.0 °C mol AHvap: 34.40 kJ/ mol Molar mass: 114.23 g/mol 0.2693 kJ/mol 4.720 kJ/mol 21.50 kJ/mol 0.2540 J/mol

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Octane(C3H18) is a hydrocarbon found in crude oil. Thermochemical data for octane is provided
below. The total change in enthalpy is 15.94 kJ when heating 0.2500 moles of octane from
-70.00°C to 100.0°C. Determine the AHfusion.
Melting point: -57.00 °C
Boiling point: 126.0 °C
J
Csolid : 185.0
°C mol
J
Cliquid: 254.0
°C mol
J
Cgas: 250.0
°C mol
AHvap: 34.40 kJ/ mol
Molar mass: 114.23 g/mol
0.2693 kJ/mol
4.720 kJ/mol
O 21.50 kJ/mol
0.2540 J/mol
Transcribed Image Text:Octane(C3H18) is a hydrocarbon found in crude oil. Thermochemical data for octane is provided below. The total change in enthalpy is 15.94 kJ when heating 0.2500 moles of octane from -70.00°C to 100.0°C. Determine the AHfusion. Melting point: -57.00 °C Boiling point: 126.0 °C J Csolid : 185.0 °C mol J Cliquid: 254.0 °C mol J Cgas: 250.0 °C mol AHvap: 34.40 kJ/ mol Molar mass: 114.23 g/mol 0.2693 kJ/mol 4.720 kJ/mol O 21.50 kJ/mol 0.2540 J/mol
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