Question

help help help help my ans is not matching the right one please anyone providesolution to this question ​

Answer 1

Answer:

C)-315kJ

Explanation:

C(s) +O2(g) =CO2(g)

∆fH=-393.5kJmol-¹

so heat released on formation of 1mole

CO2=-395kJmol-¹

there heat released on formation of 35g of CO2

is

=-393.5/44(1mole) ×35.2g =-315KJ