What are the limitations of Friedel-Crafts alkylation reactions?
Friedel-Crafts alkylation is a widely used method in organic chemistry to introduce alkyl groups into aromatic compounds. While it is a valuable tool, it does have several limitations:
1. Carbocation Rearrangements: One significant limitation is the potential for carbocation rearrangements. During the reaction, a carbocation intermediate is formed, __________ ____ _________ _____ ___ ______ _______ _______ _________ _________ _____ _________.
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The enthalpy of formation of NH3(g) as per the following reaction is -46.11 kJ/mol at 298 K.
Calculate the value of enthalpy of formation of NH3(g) at 100 oC. The Cp values are given as: N2(g) = 29.12; H2(g) = 28.82; NH3(g) = 35.06. Assume the given heat capacity values to be temperature independent in the range.
State Hess’ law of constant heat summation and give its importance.
Complete following reactions:
Give the statistical definition of entropy and calculate the entropy of a system having 6.9 x 1010 microstates.
What is meant by the equilibrium constant Kp? Give the relation where it is shown in terms of partial pressure
Define heat capacity; molar heat capacity and specific heat capacity of a substance and give relations between them
For the equilibrium
The equilibrium concentrations are M and
M. Suppose that the concentration of SO2 is suddenly halved calculate Qc and use it to show that the forward reaction takes place to reach a new equilibrium.