If 3.0 L of oxygen gas at 414 K is cooled at constant pressure until the volume becomes 1.50 L, then what is the final temperature?

the answer would be a

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

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.