An equation for the combustion of methanol in oxygen is:
2CH3OH + 3O2 → 2CO2 + 4H2O
ΔH = -1451 kJ
Is this reaction exothermic or endothermic?
Give a reason for your answer. - Leaving Cert Chemistry - Question 6a - 2018
Question 6a
An equation for the combustion of methanol in oxygen is:
2CH3OH + 3O2 → 2CO2 + 4H2O
ΔH = -1451 kJ
Is this reaction exothermic or endothermic?
Give a reason for yo... show full transcript
Worked Solution & Example Answer:An equation for the combustion of methanol in oxygen is:
2CH3OH + 3O2 → 2CO2 + 4H2O
ΔH = -1451 kJ
Is this reaction exothermic or endothermic?
Give a reason for your answer. - Leaving Cert Chemistry - Question 6a - 2018
Step 1
Is this reaction exothermic or endothermic?
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Answer
The reaction is exothermic.
Step 2
Give a reason for your answer.
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Answer
The enthalpy change (ΔH) is negative, indicating that heat is released during the reaction. Being a combustion reaction, methanol (CH3OH) is classified as a fuel, and combustion reactions typically release energy in the form of heat.
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