For the combustion reaction (g) + 5 (g) → 3 (g) + 4 (l) (per reaction as written)…

CHEMISTRY · Subjective · A Level · Chemistry · Energetics · Energetics

Problem

For the combustion reaction

C_{3}H_{8}

(g) + 5

O_{2}

(g) → 3

CO_{2}

(g) + 4

H_{2}O

(l)

\Delta H = -2220\,\text{kJ}

(per reaction as written) Calculate the amount of heat (in kJ) released when

15.0\,\text{g}

C_{3}H_{8}

undergoes complete combustion at

25\,^\circ\text{C}