Please help this is chemistry.
1 answer:
You might be interested in
The reaction of 1-bromo-2-methylpropane (isobutyl bromide), , with
, and
results in the formation of an adduct of formula
known as grignard reagent, an organometallic reagent, which on reacting with
results in the formation of isobutane.
The reaction is shown in the image.
Answer: 35.1 kJ/mol
Explanation:
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.
(1)
(1)
The final reaction is:
(3)
By adding (1) and (2)
Hence the expected value for the heat of sublimation of acetic acid is 35.1 kJ/mol