Describe how to use le chatelier’s principle to predict the possible ways a chemical system can respond to changes.

The equilibrium law is used to predict the change in the conditions of the chemical equations in equilibrium. The changes in temperature, pressure, and volume can change the chemical reaction conditions.

The equilibrium law can predict the change as:

Thus, the change in the condition can alter the dynamic equilibria, then the direction of reaction will be countereffect to attain equilibrium.

To know more about equilibrium law, refer to the following link:

link

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.