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Lavoisier and Laplace Law
A.L.Lavoisier and P.S.Laplace gave this law in 1780 which states that 'the enthalpy of a reaction is exactly equal but opposite in sign for the reverse reaction'. For example, if D H is the enthalpy change in going from A to B then the enthalpy change for the process B to A would be - D..
Discovery of Oxygen
Discovery of Oxygen - Two scientists, Carl Scheele of Sweden and Joseph Priestly of England working independently, discovered oxygen. They published their discovery in 1777. Scheele obtained oxygen by heating potassium nitrate and mercuric oxide and called it "Fire Air". Priestley called it "Dephlo..
Discovery of Oxygen - Two scientists, Carl Scheele of Sweden and Joseph Priestly of England working independently, discovered oxygen. They published their discovery in 1777. Scheele obtained oxygen by heating potassium nitrate and mercuric oxide and called it "Fire Air". Priestley called it "Dephlo..Did You Know?
The cells that make up our body are so small that you would fit over 200 of them on the full stop at the end of this sentence. The word cell is derived from the Latin word cellula which means a little room. It was the British botanist Robert Hooke who, in 1664, while examining a slice of bottle co..
Did You Know
Stephen Hales - Father of plant physiology. Lipmann - Father of ATP cycl..
Did the artist use perspective?
Did the artist use perspective? => yes or no..
Why did Mendel miss linkage?
Mendel could not note linkage because of the seven characters be studied in garden pea, most of them are located in different (non-homologous) chromosomes seed colour and flower colour are in the same chromosome i.e, they are linked. However, they lie so far apart that they get separated by crossin..
Group 15 (VA) Element - Nitrogen
Daniel Rutherford, a Scottish Physician, discovered nitrogen in 1772. But it was Lavoisier, who proved that nitrogen is an element and that it was not a supporter of combustion and respiration. He called it 'azote' meaning 'no life'. The name 'Nitrogen' was given to it by Jean ..
Discovery
Daniel Rutherford, a Scottish Physician, discovered nitrogen in 1772. But it was Lavoisier, who proved that nitrogen is an element and that it was not a supporter of combustion and respiration. He called it 'azote' meaning 'no life'. The name 'Nitrogen' was given to it by Jean ..
Group 15 (VA) Element - Nitrogen
Discovery - Daniel Rutherford, a Scottish Physician, discovered nitrogen in 1772. But it was Lavoisier, who proved that nitrogen is an element and that it was not a supporter of combustion and respiration. He called it 'azote' meaning 'no life'. The name 'Nitrogen' was given to it by Jean..
Hydrogen
Hydrogen..
Hydrogen.. Result
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