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The enthalpy of combustion of methane, graphite and dihydrogen at 298 K are, −890.3kJ mol−1–393.5kJ mol−1, and –285.8 kJ mol−1 respectively. Enthalpy of formation of CH4(g) will be (i) –74.8kJ mol−1 (ii) –52.27kJ mol−1 (iii) +74.8kJ mol−1 (iv) +52.26kJmol−1 |
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Answer» The enthalpy of combustion of methane, graphite and dihydrogen at 298 K are, −890.3kJ mol−1–393.5kJ mol−1, and –285.8 kJ mol−1 respectively. Enthalpy of formation of CH4(g) will be |
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