Enthalpyof combustion of carbon to CO_(2) is -393.5 kJ mol^(-1) . Calculate the heat released upon formation of 35.2g of CO_(2) from carbon and dioxygen gas.

Enthalpyof combustion of carbon to CO_(2) is -393.5 kJ mol^(-1) . Calc

1.	Enthalpyof combustion of carbon to CO_(2) is -393.5 kJ mol^(-1) . Calculate the heat released upon formation of 35.2g of CO_(2) from carbon and dioxygen gas.
Answer» SOLUTION :`C(s) + O_(2)(G) rarr CO_(2)(g), DeltaH = -393.5kJ mol^(-1)` ` 1 mol = 44G` HEAT released when 44 g`CO_(2)` is FORMED`= 393.5kJ` `:. `Heat released when `35.2g CO_(2)` is formed `= ( 393.5)/( 44) xx35.2kJ = 314.8 kJ`