Question

Calculate the current strength in amperes required to liberate oxygen gas at rate of 1 cubic centimetres per second at STP

Answer 1

Answer:

I = 5A

T = 193 secs

Q = IT

= 5×193 = 965

Equivalent weight of oxygen = 8

Mass of oxygen liberated =

(E × Q)/96500g

= (8 × 965)/96500

= 0.08 g

volume of 32g Oxygen at STP = 22400ml

Volume of 0.8 g oxygen at STP = (22400/32)×0.08

= 56 ml = 56 cc