## Answers

2SO2 + O2= 2SO3 ?H= -198KJ/MOLE

Here 2 moles of SO2 on combustion produces 198 KJ of energy

1 mole of SO2 = 64 g

2 moles of SO2 = 128

so, 128 g produces 198 KJ

320gr of SO2 produces ,

(198/128)*320 KJ

that is = 495 KJ

THE AMOUNT OF HEAT PRODUCED IN THE ABOVE REACTION IS 495 KJ.

2SO_{2} + O_{2}= 2SO_{3} ΔH= -198KJ/MOLE

Here 2 moles of SO_{2} (M.Wt=2x32+32=96gr) on combustion produces 198 KJ of energy

320gr of SO_{2} produces is

320grx198/96gr= 6.6x10^{2} KJ/mole

THE AMOUNT OF HEAT PRODUCED IN THE ABOVE REACTION IS 6.6X10^{2} KJ/MOLE

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