What is the electronic configuration of chromium atom (Z = 24)? Give a reason for your answer.
H2S is a gas at room temperature whereas, H2O is liquid at room temperature because H2O has a stronger dipole interaction. The ability o oxygen atom to pull electrons is greater than of sulphur such that oxygen is more electronegative than sulphur. Hence Hydrogen forms stronger bond with oxygen and thus H2O exist in form of liquid.
i) State the second law of thermodynamics in terms of the entropy of the universe.
(ii) Calculate the maximum work that can be obtained from the given electrochemical cell constructed with two metals M and N.
The cell reaction is M + N+2 → M+2 + N
To precipitate group III cations NH4Cl should be added to the solution before the addition of ammonium hydroxide. Explain why.
A study of chemical kinetics of the reaction A+B → products, gave the following data at 25°C:
Find:
(1) The order of reaction with respect to A.
(2) The order of reaction with respect to B.
(3) The rate law.