Atank contains initially 2500 liters of 50% solution. water enters the tank at the rate of 25 iters per minute and the solution flows out at the rate of 50 liters per minute. find the percentage of salt after 20 minutes

Percentage of solution=32. 96%

Explanation:

Given that initially tank have 50% solution.It means that amount of solution=0.5 x 2500 =1250 lts

Lets take the amount of solution at time t = A

So

Now by integration

Where C is the constant

Given that at t=0 ,A=1250

So

When t=20 min

A=837.90

So percentage of solution after 20 min

Percentage of solution=32. 96%

answer:

okay

explanation:

explanation:  

an electrode is a metal whose surface serves as the location where oxidation-reduction equilibrium is established between the metal and what is in the solution.