If you have a flexible container filled with gas that has an initial volume of 68.1 L and a temperature of 71.1 C, what will happen to the temperature if the volume is reduce to 27.9 L?

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the answer is barium and copper bromide

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.