What do you mean by gels? How they are classified?
admin The colloidal system constituting the liquid as the dispersed phase and the solid as the dispersion medium is known as gel. There are some sols that have a high concentration…
What do you mean by catalyst?
Catalyst is a substance which can change the speed of a chemical reaction without being used up in that reaction and the phenomenon is known as catalysis. Catalyst is divided…
Define homogeneous catalyst and heterogeneous catalyst?
Homogeneous catalyst: If the catalyst is present in the same phase as the reactants, it is called a homogeneous catalyst and this type of catalyst is called homogeneous catalysis. Heterogeneous…
What are Zeolites?
Zeolites are aluminosilicates i.e. three dimensional net work silicates in which some silicon atoms are replaced by aluminium atoms. They are found in nature as well as synthesized in the…
What do you mean by enzymes as catalyst?
All biological reactions are catalyzed by special catalyst called enzymes. Thus enzymes are defined as biological catalyst. Chemically all enzymes are globular proteins. However, some enzymes are also associated with…
What is the other type of fissionable material which can be used in nuclear fission processes?
Various type of radioactive material like plutonium can be used as a fissionable material. However, ordinary uranium consists only of about 0.7 percent of U235 and it is extremely difficult…
Why is 92U238 not suitable for chain reaction?
As we know 92U238 is bigger in size so it will not breakup unless the energy of bombarding neutrons is more than 1.2 MeV. Such neutrons are called fast neutrons.…
What is Nuclear Fusion?
It is a process of formation of heavier and bigger nucleus by the combination of various lighter and smaller nucleus. This process is called nuclear fusion. This process can take…
How energy is produced in the sun and the stars?
The energy production in the sun and the star could be explained on the basis of carbon cycle by means of which hydrogen is converted into helium. 6C12 act as…
What is Hydrogen Bomb?
The thermal nuclear reactions among nuclei of hydrogen isotopes like deuterium and tritium serve as sources of energy on earth crust. These type of nuclei occur more rapidly so they…