Tag Archives: works

What are the factors that affect Vapour Pressure?

1.Temperature :- With increase in temperature the rate of vaporization also increase thus it creates more pressure. Moreover with increase in temperature the kinetic energy of the vapours also increase. 2. Nature of liquid:- The liquids with lower inter-particulate attractions have high vapour pressure as the formation of vapours is easy . Like acetone isContinue reading “What are the factors that affect Vapour Pressure?”

Semiconductor and its types.

The substances whose conductivity lies between 10-⁶ to 10⁴ ohm-¹ . The range lies between conductors and insulators. Types 1. n-type :- These type of semiconductors have excess electrons present in the lattice that are responsible for the conduction. These are formed when the group 14 elements like Silicon are doped with group 15 elementsContinue reading “Semiconductor and its types.”

Why owl can see in night ?

Interesting fact about Owl We all know that the owl is capable of night vision due its special eyes. But more than this I have noticed a unique feature in it. That is ,  it does not create or make any kind of noise while taking a flight. When the owl is going to flyContinue reading “Why owl can see in night ?”

Why we add coolent in the radiator of car ?

How does a radiator of car works? We all are familiar with the coolent that is normally used in radiators but many of us will admit that they don’t know how it works. Well, being a chemistry geek here I will discuss how it works. Ethylene glycol is the liquid that is widely used inContinue reading “Why we add coolent in the radiator of car ?”

What is the surface tension?

At surface of a liquid will their will be no forces (forces by molecules) acting on molecules in opposite directions such that the net force between molecules (only at surface) will be zero? If exists how surface area of a liquid contracts? In the light of above concept let me explain a simple thing thatContinue reading “What is the surface tension?”

Distillation and fractional distillation.

Distillation is a type of separating process in which two miscible liquids are separated from each other by using their different boiling points. the one with lower boiling point , boils first and its vapours are passed through a condenser for cooling and droplets are received on the other side in a beaker. this processContinue reading “Distillation and fractional distillation.”

The galvanised iron lost its zinc coating even after it doesn’t corrode. Why does this happen?

Lets look from a different angle corrosion is basically oxidation and in oxidation the electrons are lost. Here we have zinc coated on iron being more reactive the zinc will tend to loose the electrons even if the iron is exposed, even then being good conductor the electrons are given to the iron by theContinue reading “The galvanised iron lost its zinc coating even after it doesn’t corrode. Why does this happen?”