What type of reaction mechanism accounts for the reaction of an alkene with aqueous acid to give an alcohol

Electrophilic addition reaction

Explanation:

Alkenes are compounds which have at least one double bond between the carbon atoms in the molecule. This is an indication of a shortage of hydrogen atoms. The compound is said to be unsaturated. As an unsaturated compound alkene undergoes the following reaction:

-- Combustion reaction

-- Hydrogenation reaction

-- Addition reaction.

The addition reaction of alkenes occur due to the presence of pi electrons in which an electrophile attacks the carbon-carbon double bond to form the addition products. An electrophile is a molecule that has the affinity to react with other molecules containing a donatable pair of electrons.

A typical example of reaction between alkene and acid is in the decolourisation of acidified potassium tetraoxomanganate(VII) with ethene. The oxygen supplied to the reaction breaks the double bond to yield ethane 1,2 diol ( an alcohol).

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :