Alcohols can be used as fuels. When they burn in air, they can undergo complete or incomplete combustion depending on the oxygen supply. An investigation was carried out to compare the energy released when the first four alcohols in the homologous series were burned. Equal amounts (in moles) of these alcohols were burned to heat 100 cm³ of water. The temperature change for each alcohol is shown in the table below.

Table 1

Alcohol	Chemical formula	Temperature change of water in $∘C^{\circ}\text{C}$
Methanol	$CH3OH\text{CH}_3\text{OH}$	12
Ethanol	$C2H5OH\text{C}_2\text{H}_5\text{OH}$	19
Propan-1-ol	$C3H7OH\text{C}_3\text{H}_7\text{OH}$	25
Butan-1-ol	$C4H9OH\text{C}_4\text{H}_9\text{OH}$	31

Table 1

Alcohol	Chemical formula	Temperature change of water in $∘C^{\circ}\text{C}$
Methanol	$CH3OH\text{CH}_3\text{OH}$	12
Ethanol	$C2H5OH\text{C}_2\text{H}_5\text{OH}$	19
Propan-1-ol	$C3H7OH\text{C}_3\text{H}_7\text{OH}$	25
Butan-1-ol	$C4H9OH\text{C}_4\text{H}_9\text{OH}$	31

Alcohols and carboxylic acids

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Alcohols and carboxylic acids

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Alcohols and carboxylic acids

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Alcohols and carboxylic acids Questions

Alcohols and carboxylic acids

Question 1

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Alcohols and carboxylic acids Questions