F.A & F.Sc
What is about spontaneous reactions?
One of the best characteristics of a spontaneous reaction is that it is irreversible. Read More →
What happens when a solute is dissolved in a solvent and the vapour pressure of the solution is decreased?
When a solute is dissolved in a solvent, then the vapour pressure of the solution decreases. In order to equalize the vapour pressure equal to the external pressure, we have to increase the temperature at the stage of boiling liquid.In other words boiling point increases. Read More →
What is called the substance which retards the rate of reaction?
Such a substance is called inhibitor. Read More →
How a catalyst increases the rate of reaction?
The catalyst decreases the energy of activation and increases the rate of chemical reaction. In this way, greater number of molecules get the chance to cross the energy barrier. Read More →
What will be the reaction when the energy of activated complex lies close to energy of reactants?
If the activated complex, having energy equal to the energy of activation is close to the energy of reactants. Read More →
What will be effect of larger area of reactant molecule on the rate of reaction?
Greater the surface area of the reactants, greater will be the rate of chemical reaction. The reason is that greater number of molecules of reactants find the chance to react with each other. Read More →
What is known that law which states that the net change in a chemical reaction is same whether it takes place directly or indirectly?
According to Hess’s law the net change in chemical reaction is same whether it takes place directly or indirectly. Read More →
What is about thermodynamic quantity?
Thermodynamics is that branch of science which tells us whether a process will happen or not. This information is given by a thermodynamic quantity. That thermodynamic quantity should be state function. Read More →
What will be the orbit for which the sum of principal and azimuthal quantum number is 4?
The value of azimuthal quantum number is “1” for p-orbital. So the sum of principal and azimuthal quantum number for 3p-orbital is 4. Read More →
Why the electrical conductivity of the metals decreases with increasing temperature?
When the temperature of metals are increase, there happens in to and fro motion of metal ions. This to and fro motion of the ions hinders the free movement of electrons. Read More →
