Calculate the standard heat of formation of carbon disulphide \[(l)\], given that the standard heat of combustion of carbon \[(s)\], sulphur \[(s)\] and carbon disulphide \[(l)\] are \[-393.3,\,-293.72\] and \[-1108.76\,kJ\,mo{{l}^{-1}}\] respectively [Roorkee 1989; BHU 1997]

Calculate the standard heat of formation of carbon disulphide \[(l)\],

1.	Calculate the standard heat of formation of carbon disulphide \[(l)\], given that the standard heat of combustion of carbon \[(s)\], sulphur \[(s)\] and carbon disulphide \[(l)\] are \[-393.3,\,-293.72\] and \[-1108.76\,kJ\,mo{{l}^{-1}}\] respectively [Roorkee 1989; BHU 1997]
A.	\[-128.02\,kJ\,mo{{l}^{-1}}\]
B.	\[+12.802\,kJ\,mo{{l}^{-1}}\]
C.	\[+128.02\,kJ\,mo{{l}^{-1}}\]
D.	\[-12.802\,kJ\,mo{{l}^{-1}}\]
Answer» D. \[-12.802\,kJ\,mo{{l}^{-1}}\]

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Calculate the standard heat of formation of carbon disulphide \[(l)\], given that the standard heat of combustion of carbon \[(s)\], sulphur \[(s)\] and carbon disulphide \[(l)\] are \[-393.3,\,-293.72\] and \[-1108.76\,kJ\,mo{{l}^{-1}}\] respectively [Roorkee 1989; BHU 1997]

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