The rate law

the rate of reaction indicates the speed at which the reaction can occur. it can be expressed in terms of a change in the concentration of reactants or products per unit of time:
rate = concentration changetime change

the rate of reaction can be defined either as adecrease in the concentration of a reactant per unit of time or as an increase in the concentration of a product per unit of time.
select the image to explore the activity that shows the different ways in which the rate of a reaction can be expressed.

image for nteractive activity - the rate law the rate of reaction indicates the speed at which the reaction can occur. i

when you click on the "disappearance of reactants," "appearance of products," or "rate law expression" button, you will observe different expressions for the rate of the reaction.

10 years is the answer

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.  

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.