The standard enthalpy changes of formation of carbon dioxide and water are -394
KJmol and -286kJ mol' respectively, if the standard enthalpy change of
combustion of propyne, C3H4 is -1938 KJ moll. What is its standard enthalpy
change of formation?
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The fuel should have high calorific value. Higher the calorific value, best will be the fuel. Calorific value is the total energy released as heat when complete combustion of a substance occurs with oxygen under standard conditions. As the heat of combustion of CH
4
is less negative the CH
4
will be the best fuel among the following.
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