Question

the amount of air present in a cylinder when a vaccum pump removes 1/4 of the air remaining in the cylinder at a time (using initial volume=v)

Answer 1

Answer:

let the initial volume is v

after first time the volume will be (3/4)*v

after second time 3/4*3/4 *v = 9 /16 v

after third time = 3/4*9/16 v = 27/64 v

after forth time = 3/4*27/64 v = 81/216 v

Step-by-step explanation:

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