The equation represents the decomposition of a generic diatomic element in its standard state. 1 2 X 2 ( g ) ⟶ X ( g ) Assume that the standard molar Gibbs energy of formation of X(g) is 5.41 kJ⋅mol − 1 at 2000. K and − 52.48 kJ⋅mol − 1 at 3000. K. Determine the value of K (the thermodynamic equilibrium constant) at each temperature. K at 2000. K = K at 3000. K =

Explanation:

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In this case, in terms of the Gibbs free energy of the given reaction, the equilibrium constant is computed as shown below:

In such a way, since the given Gibbs correspond to formation of X, they will equal the Gibbs free energy of those reactions. Thus, at each temperature we obtain:

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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.