A gas mixture contains each of the following gases at the indicated partial pressures: N2, 211 torr ; O2, 101 torr ; and He, 159 torr . What is the total pressure of the mixture? What mass of each gas is present in a 1.50 −L sample of this mixture at 25.0 ∘C

points

explanation:

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.