The heat of combustion of carbon to CO_(2) is -393.5 kJ// mol . The heat released uponformation of 35.2 g ofCO_(2) from carbon and oxygen gas is

The heat of combustion of carbon to CO_(2) is -393.5 kJ// mol . The he

1.	The heat of combustion of carbon to CO_(2) is -393.5 kJ// mol . The heat released uponformation of 35.2 g ofCO_(2) from carbon and oxygen gas is
Answer» `+ 315kJ` `-630kJ` `-3.15 kJ` `-315kJ` Solution :`C+ O_(2) rarr UNDERSET(44G) (CO_(2)), DELTAH=- 393.5 kJ mol^(-1)` For formation of44g , `DeltaH= -393.5 kJ` `:. `For formation of`35.2 g `of`CO_(2)` `DeltaH= - ( 393.5)/( 544) xx35.2 =- 314.8 =-315 kJ`