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Chemical Equilibria
A system which can exchange energy not matter with the surroundings is called a closed system.
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Fill in the blanks by choosing the appropriate word / words from those given in the brackets:
(Raoult’s, Arrhenius, lateral, sodium, magnesium, negative, positive, non-ideal, ideal, iron, copper, van’t Hoff, p- p orbital, ethanol, ethanoic acid, methanoic acid, methanol, propanoic acid.)
(i) For a spontaneous change to take place, the ΔS of the system should be______and ΔG of the system should be________.
(ii) Hydrolysis of methyl propanoate gives______and_______.
(iii) Solutions which strictly obey-law are called__________solutions.
(iv) π bonds are formed by the-overlap of_______orbitals.
(v) Zinc can displace_______from CuSO4 solution, but cannot displace_________from MgSO4 solution.
State the Le-Chatelier’s principle.
Consider the following reaction:
N2O4(g) + Heat ⇌ 2NO2(g)
How is the composition of equilibrium mixture affected by:
(i) a change in temperature
(ii) a change in pressure
(iii) a change in concentration of N2O4
(iv) the removal of NO2 from the reaction mixture
Correct the following statements :
The enthalpy of a system is an intensive property i.e. its value depends on the amount of matter in the system.
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