*A sample of gas at standard pressure (760 mmHg) occupies 250 ml at 25 °C. What is its new pressure when the temperature is increased to 50°C and volume expands to 270 mL ? (n is constant)

i believe the answer is true.

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.