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Help me answer: Standard heat formation of CH4(g), CO2(g) and water at 25°C are -17.9, -94.1 and -68.3 Kcal mol-1respectively. Calculate the heat change (in Kcal) in the following reaction at 25°C:CH4(g) + 2O2(g) = CO2(g)+ 2H2O(l)
Standard heat formation of CH4(g), CO2(g) and water at 25°C are -17.9, -94.1 and -68.3 Kcal mol-1 respectively. Calculate the heat change (in Kcal) in the following reaction at 25°C:
CH4(g) + 2O2(g) = CO2(g) + 2H2O(l)
- Option 1)
-144.5
- Option 2)
-180.3
- Option 3)
-248.6
- Option 4)
-212.8
Answers (1)
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As learnt in
Enthalpy of combustion -
Amount of Enthalpy change when 1 mole of substance is completly burn in excess of Oxygen
- wherein
Option 1)
-144.5
Incorrect
Option 2)
-180.3
Incorrect
Option 3)
-248.6
Incorrect
Option 4)
-212.8
correct
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