Interaction between Colloids-Gold Number
It is known that lyophobic sols are unstable. They are however stabilized by adding stabilizers. When two lyophobic sols are mixed together, they may coagulate by mutual neutralization of electric charges or by destroying each others stabilizers. A lyophobic sol may be protected by the ad..
I Cannot Remember my Mother
. Perhaps his mother often sang the same song as she rocked him to sleep in the cradle. He recalls this tune as he touches his old toys. In autumn, the Shiuli tree in Bengal blossoms into fragrant tiny flowers which are used for worship. His mother would string the flowers for the morning service a..
I Cannot Remember my Mother - Poem
. When he looks at his playthings he seems to be able to hear a tune. Perhaps his mother often sang the same song as she rocked him to sleep in the cradle. He recalls this tune as he touches his old toys. In autumn, the Shiuli tree in Bengal blossoms into fragrant tiny flowers which are used for wo..
Telephone Lines
where W 1 is the input power and W 2 the output power. If W W 2 exceeds W 1 , the value is positive and is spoken of as again. When W 1 exceeds W 2 the expression will be negative and indicates a loss. The decibel is also used as a measure of the amount of power absorb..
where W 1 is the input power and W 2 the output power. If W W 2 exceeds W 1 , the value is positive and is spoken of as again. When W 1 exceeds W 2 the expression will be negative and indicates a loss. The decibel is also used as a measure of the amount of power absorb..Knocking of fuels
An internal combustion engine works with a system of pistons. A mixture of air and petrol vapor, is drawn from the carburetor into the cylinder in the down-stroke of the piston. In the upstroke phase, the mixture is compressed. The ratio of the initial volume to final volume is called the compress..
Gold Number
It is the number of milligrams of the protective colloid which just prevent coagulation of 10ml of standard gold sol when 1 ml of 10% solution of sodium chloride is added to it. Different lyophilic sols have different gold numbers. Smaller the gold number of the protective colloid, great..
It is the number of milligrams of the protective colloid which just prevent coagulation of 10ml of standard gold sol when 1 ml of 10% solution of sodium chloride is added to it. Different lyophilic sols have different gold numbers. Smaller the gold number of the protective colloid, great..Greenhouse Effect
Greenhouse Effect - The Greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (referred to as greenhouse gases), trap energy from the Sun. Without these gases heat would escape back into space and living on Earth would be inhospitable with a..
1. Atomic and ionic radii
The atomic and ionic radii of group 13 elements are compared to corresponding elements of group 2. This is due to the increase in nuclear charge when one moves from, element of group 2 to group 13 in the same period. As the elements are considered from left to right in the period, the magnitude of..
Alkylation
An alkyl halide can react with a primary or secondary amine which acts as a nucleophile. On undergoing nucleophilic substitution, a 1 o amine is converted to a 2 o amine and a 2 o one to a 3 o amine. The 2 o amine being a more powerful nucleophile again reacts with an alkyl halide to form..
An alkyl halide can react with a primary or secondary amine which acts as a nucleophile. On undergoing nucleophilic substitution, a 1 o amine is converted to a 2 o amine and a 2 o one to a 3 o amine. The 2 o amine being a more powerful nucleophile again reacts with an alkyl halide to form..Artificial Kidney
Artificial Kidney - The haemodialyzer or artificial kidney is a machine used to filter the blood of a person whose kidneys are damaged. The process is called haemodialysis. Haemodialysis is defined as the seperation of small molecules from large molecules in a solution by interposing a semipermeabl..
See what our Users say :
I am Jessica from New York, I got excellent English tutors from Tutor Vista, who helped me lot to overcome my grammar mistakes, Thanks a lot...
Hi, I am home school student, I am getting a great help from Tutor Vista in all the subjects, I am more confident now...
My son started joined Tutor Vista in 6 th grade, Now he is 8 th grade, He likes Tutor Vista tutors more than his school teachers…Lucy
For every concept, here we get explanation along diagrams, I really liked it very much
Looking for More Help!
