Question

The efficiency of a spray chamber scrubber is 95% for 20 μm particles. Everything else being constant, what is the efficiency for 10 μm particles?

a. 48%

b. 53%

c. 78%

d. 95%

Answer 1

Answer : The correct option is, (a) 48 %

Explanation :

As we are given the efficiency of a spray chamber is, 95 %

Using unitary method :

If the efficiency of
`20\mu m` particles is 95 %

Then, the efficiency of
`10\mu m` particles will be =
`(10\mu m)/(20\mu m)* 95\%=47.5\%\approx 48\%`

Therefore, the efficiency for
`10\mu m` particles is, 48 %