Methanol, CH3OH, is made by causing carbon monoxide and hydrogen gases to react at high temperature and pressure. If 450. mL CO and 825 mL H2 are mixed
under the same conditions of 25oC and 994 mbar,
a. How many moles of each gas is present?
b. Which reactant is present in excess?
c. How many moles of that reactant remains after the reaction?
d. What volume of CH3OH is produced, assuming the same temperature and
pressure?

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.