Questions

Energy is measured in units called Joules.

Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.

1 Joule  =  10⁷ ergs or 0.7377 foot-pounds.

The gram formula mass is nothing but molar mass.

Composition :

Symbol      Element       Atomic weight       Atoms
   

     P         Phosphorus       30.973762               1       = 30.973
   

     O         Oxygen             15.9994                  4       =  63.998
   

     N         Nitrogen            14.0067                  3       =  42.020
   

     H         Hydrogen          1.00794                  12      =  12.096

Total   =  30.973+63.998+42.020+12.096 = 149.087

A sample of matter must be copper if each atom in the sample has 29 protons.

Triglycerides are the primary form of dietary fat found in the body, and may contain a combination of three fatty acids:

saturated fatty acids (SFAs),

polyunsaturated fatty acids (PUFAs), or

monounsaturated fatty acids (MUFAs).

Russia is the Largest country of the World by Geographical Area.

Top 10 largest countries of the World :

1. Russia

2. Canada

3. United States of America

4. China

5. Brazil

6. Australia

7. India

8. Argentina

9. Kazakhstan

10. Algeria

When all 10 of the world's largest countries are taken together, they total 49% of the earth's entire 149 million square kilometres of land.