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Hydrogen peroxide decomposes according to the equation below
`H_2O_2(l)→H_2O(l)+1/2 O_2(g); DeltaH =-98kJ`
8.5 g of hydrogen peroxide contained in `100cm^3` of solution with water were completely decomposed. Determine the rise in temperature due to the
reaction. (Specific heat capacity of solution=`4.2Jg^-1K^-1` density of water=`1gcm^-3` O=16 H=1)