At 25°c, the equilibrium constant kc for the reaction in thesolvent ccl4 2brcl < > br2 + cl2 is 0.141. if the initial concentration of chlorine is 0.0300 m andof bromine monochloride is 0.0200 m, what is the equilibrium concentration of bromine?

The equilibrium concentration of bromine gas is 0.00135 M

Explanation:

We are given:

Initial concentration of chlorine gas = 0.0300 M

Initial concentration of bromine monochlorine = 0.0200 M

For the given chemical equation:

Initial:          0.02               0.03

At eqllm:    0.02-2x     x     0.03+x

The expression of for above equation follows:

We are given:

Putting values in above equation, we get:

Neglecting the value of x = -0.96 because, concentration cannot be negative

So, equilibrium concentration of bromine gas = x = 0.00135 M

Hence, the equilibrium concentration of bromine gas is 0.00135 M

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

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