A31.00 g sample of oxygen at 298K reacts with excess propane. Calculate the change in energy,...

Question

Question

A31.00 g sample of oxygen at 298K reacts with excess propane. Calculate the change in energy, AE in kJ that occurs when the r

Answer 1

Answer #1

From the balanced chemical reaction,

5 mole*32g/mole= 160 g of oxygen upon reaction the change in energy is -2365 kJ

When 31.00 g of oxygen upon reaction the change in energy is(31.00g*(-2365kJ))/160g= -458.2 kJ

Therefore the change in energy is -458.2 kJ

Answer 2

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