The concept of chemical equilibrium is very important. Which one of the following statements is the most correct way to think about equilibrium? (a) If a system is at equilibrium, nothing is happening. (b) If a system is at equilibrium, the rate of the forward reaction is equal to the rate of the back reaction. (c) If a system is at equilibrium, the product concentration is changing over time.

Video transcript

Hi everyone here we have a question asking us to choose the statement that correctly describes the concept of chemical equilibrium. A equilibrium is reached when the concentration of the product is constant. This is true. Be equilibrium is reached when the rate of the reaction goes faster. This is false. C equilibrium is reached when the chemical reaction stops, this is false. All of the above B and C are false. So this cannot be our answer and E. None of the above A is true, so this cannot be our answer. So our answer here is a equilibrium is reached when the concentration of the product is constant. Thank you for watching. Bye.