8 (আট) মোল অকটেনকে বায়ুতে দহন করলে কি পরিমাণ শক্তি নির্গত হয়? যেখানে, \( \Delta H^0_{CO_2(g)} = -490 \text{ kJmol}^{-1} \) , \( \Delta H^0_{H_2O(g)} = -240 \text{ kJmol}^{-1} \) এবং \( \Delta H^0_{C_8H_{18}(l)} = +160 \text{ kJmol}^{-1} \) (How much energy will be released if 8 mole Octane burns in air? Where \( \Delta H^0_{CO_2(g)} = -490 kJ mol^{-1} \) , \( \Delta H^0_{H_2O(g)} = -240 kJ mol^{-1} \) and \( \Delta H^0_{C_8H_{18}(l)} = +160 kJ mol^{-1} \) )

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