The Total solution for NCERT class 6-12
Ethylacetate is formed by the reaction between ethanol and acetic acid and theequilibrium is represented as:
(i) Write the concentration ratio (reactionquotient), Qc, for this reaction (note: water is not in excess andis not a solvent in this reaction)
(ii)At 293 K, if one starts with 1.00 mol of acetic acid and 0.18 mol of ethanol,there is 0.171 mol of ethyl acetate in the final equilibrium mixture. Calculatethe equilibrium constant.
(iii)Starting with 0.5 mol of ethanol and 1.0 mol of acetic acid and maintaining itat 293 K, 0.214 mol of ethyl acetate is found after sometime. Has equilibrium beenreached?
(i) Reactionquotient,
(ii) Let the volume of thereaction mixture be V. Also, here we will consider that water is asolvent and is present in excess.
Thegiven reaction is:
Therefore,equilibrium constant for the given reaction is:
(iii) Let the volume ofthe reaction mixture be V.
Therefore,the reaction quotient is,
Since, equilibrium has not been reached.