Define azeotropes. What type of azeotrope is formed by positive deviation from Raoult’s law ?
Give an example.
Give an example.
Azeotropes—A liquid mixture which distills a constant temperature without undergoing any change in composition is called azeotropes.
Minimum boiling azeotropes is formed by positive deviation from Raoult’s law.
Example : (i) Water and benzene
(ii) Chloroform and methanol
Minimum boiling azeotropes is formed by positive deviation from Raoult’s law.
Example : (i) Water and benzene
(ii) Chloroform and methanol
State Henry’s law. What is the effect of temperature on the solubility of a gas in a liquid ?
What are colligative properties? Write the colligative property which is used to find the molecular mass of macromolecules.
Calculate the molality of ethanol solution in which the mole fraction of water is 0.88.
Calculate pH of following half-cell. Pt, \(H_2\) / \(H_2\)\(SO_4\) , if its electrode potential is 0.03V.
Define the following terms :
(i) Molar conductivity (),
(ii) Secondary batteries.
What is meant by positive deviations from Raoult’s law ? Give an example. What is the sign of H for positive deviation ?
Complete and balance the following chemical equations:
(a) Fe²⁺ + MnO₄⁻ + H⁺ →
(b) MnO₄⁻ + H₂O + I⁻ →
What is meant by rate of a reaction ? Differentiate between average rate and instantaneous rate of a reaction.