Use the References to access important values if needed for this question. A sample of krypton gas at a pressure of 1.02 atm and a temperature of 167°C, occupies a volume of 587 mL. If the gas
is heated at constant pressure until its volume is 849 mL, the temperature of the gas sample will be
°C.

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.