3:18. The work done to compress a gas is 74J. As a result, 26Jof heat is given
OFF to the surroundings. Calculate the change in Energy of the gas.

1 is the answer to this problem

answer: i dont know the answer but this might

explanation:

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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.