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chapter: chemical equilibrium Chemical equilibrium is achieved when the rates of 2 reactions become equal.Does this mean there are 2 reactions going on? like.for example,in solid-liquid equilibrium rate of freezing is said to be equal to rate of melting. Does this mean both freezing and melting take place simultaneously in a closed vessel?

chapter: chemical equilibrium
Chemical equilibrium is achieved when the rates of 2 reactions become equal.Does this mean there are 2 reactions going on? like.for example,in solid-liquid equilibrium rate of freezing is said to be equal to rate of melting. Does this mean both freezing and melting take place simultaneously in a closed vessel?

Grade:11

3 Answers

seetaram dantu
29 Points
7 years ago
yes, when the equilibriumm is achieved, both the foward and backward reactions are going on, here both the concentrations of reactants and products are equal
eg:   PCl5 2+ Cl3  PCl
        when equiliriumm is achieved, the ammount of pcl5 formed is equal to ammount of plc3 + cl2 formed
so, the reaction never stops when equilirium is achieved
 
 
seetaram dantu
29 Points
7 years ago
the example was PCl5  indicates equilibrium)( 2     + Cl3 PCl
sorry for keyboard error 
thank you
 
 
Umakant biswal
5349 Points
7 years ago
@ nishtha 
yes , you are correct , both have to be run on the same place simoultaneously , only then equilibrium can acheive . 
and one more thing – one process may be slower and other one might be faster at some extent of time , but when the both forward as well as backward will be equal , only then the system will acheive the equilibrium . and in the melting and freezing also , same thing are going to happen . 
HOPE U UNDERSTAND 
ALL THE BEST ..

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