HSC Science कक्षा ११ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Chemistry

Write a balanced chemical equation for the following chemical reaction.

heating calcium carbonate

Write a balanced chemical equation for the following chemical reaction.

heating calcium with oxygen

Give the systematic name for the following.

Lime

Mention the uses of plaster of Paris.

Write the balanced chemical equation for the following process.

evaporating a solution of calcium hydrogen carbonate

Write the balanced chemical equation for the following process.

heating calcium oxide with carbon

How is plaster of Paris prepared?

Give the uses of gypsum.

The table indicates the value of van der Waals constant ‘a’ in (dm³)² atm. mol^-2

The gas which can be most easily liquefied is

Four gases P, Q, R and S have almost the same values of 'b' but their 'a' values (a, b are Van der Waals Constants) are in the order Q < R < S < P. At a particular temperature, among the four gases, the most easily liquefiable one is

The units of Van der Waals constants 'b' and 'a' respectively

State Le – Chateller principle.

Derive the values of critical constants in terms of van der Waals constants.

A sealed container was filled with 0.3 mol H₂(g), 0.4 mol I₂(g) and 0.2 mol HI(g) at 800 K and total pressure 1.00 bar. Calculate the amounts of the components in the mixture at equilibrium given that K = 870 for the reaction, \[\ce{A2 (g) + B2 (g) <=> 2 AB (g)}\].

Heat of combustion is always ___________.

Molar heat of vapourisation of a liquid is 4.8 kJ mol^–1. If the entropy change is 16 J mol^–1 K^–1, the boiling point of the liquid is

Define molar heat capacity.

Write the unit of molar heat capacity.

What are state and path functions? Give two examples.

What is a vapour pressure of liquid?