The heat granted by combustion is calculated:
q comb = 8.2 g * (1 mol / 44.1 g) * (103.9 kJ / 1 mol) = 19.32 kJ
It has the heat expression for the calorimeter:
q = m * cp * ΔT + Ccal * ΔT
19320 = 2500 * 4.18 * (Tf - 20.6) + 2250 J * (Tf - 20.6)
Tf clears = 22.12 ° C
Option 2.
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