Tutored Practice Problem 10.4.5 COUMITS TOWAR CRAD Use constant-volume calorimet

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Tutored Practice Problem 10.4.5 COUMITS TOWAR CRAD Use constant-volume calorimetry to determine energy change. Close Problem A 0.369-g sample of tridecanediole acid The calorimeter contains 1.01x103 g of water and the bomb has a heat capacity of 947 JPC. Based on this experiment, calculate AE for the C13H240) is burned in a bomb calorimeter and the temperature increases fron 24.00 °C to 262°C. combustion reaction per mole of tridecanedioie acid burned (kJ/mol) callao,(s) + 1702(g)--13 CO2(g) + 12 H2O(l) E- kJ/mol Check & Submit Answer Show Approach

Explanation / Answer

amount of heat released(q) = m*s*DT+C*DT

                           = 1.01*10^3*4.184*(26.2-24)+947*(26.2-24)

                           = 11.38 kj

no of mol of C13H24O4 = 0.369/244.32= 0.0015 mol

DE = -q/n

    = -11.38/0.0015

    = -7586.6 kj/mol

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