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2C s 202 g H 12 0 H O 2CO g AH 787 kJ AH...

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2C s 202 g H 12 0 H O 2CO g AH 787 kJ AH 286 kJ C H g 5 2 O2 g 2CO2 g H O l AH 1301 kJ Heat of formation of acetylene is a 1802 kJ b 1802 kJ c 800 kJ d 228 kJ

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3.7 Ratings (421 Votes)
To find the heat of formation of acetylene textC2textH2 we can use Hesss Law which states that the total enthalpy change for a reaction is the same no matter how many steps the reaction is carried out in Given reactions 1 2textCs 2textO2g rightarrow    See Answer
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Transcribed Image Text

2C s 202 g H 12 0 H O 2CO g AH 787 kJ AH 286 kJ C H g 5 2 O2 g 2CO2 g H O l AH 1301 kJ Heat of formation of acetylene is a 1802 kJ b 1802 kJ c 800 kJ d 228 kJ

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