An unsteady state system, the flow in the rate of A is 6 mole/s, what is the flow out rate of B if the accumulation was 18 mole in 9 seconds?(a) 1 mole/s(b) 2 mole/s(c) 3 mole/s(d) 4 mole/sThis question was posed to me in homework.Enquiry is from Steady-State and Unsteady-State Systems topic in division Introduction to Material Balances of Basic Chemical Engineering

An unsteady state system, the flow in the rate of A is 6 mole/s, what

1.	An unsteady state system, the flow in the rate of A is 6 mole/s, what is the flow out rate of B if the accumulation was 18 mole in 9 seconds?(a) 1 mole/s(b) 2 mole/s(c) 3 mole/s(d) 4 mole/sThis question was posed to me in homework.Enquiry is from Steady-State and Unsteady-State Systems topic in division Introduction to Material Balances of Basic Chemical Engineering
Answer» Correct CHOICE is (d) 4 mole/s Best explanation: FLOW rate of B = 6 – 18/9 = 4 mole/s.

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