In an experiment, NO 2 gas is prepared and taken into 3 test tubes X , Y and Z . NO 2 gas…
Chemistry · Class 11 · CBSE — Equilibrium
In an experiment, NO2 gas is prepared and taken into 3 test tubes X, Y and Z. NO2 gas which is brown in colour dimerises into N2O4 which is colourless. Test tube X is kept at room temperature, Y is kept in ice and Z is kept in hot water. What colour changes will you observe in the test tubes and why?
- In test tube X, brown colour intensifies since backward reaction is favoured at low temperature.
- In test tube Y, brown colour intensifies since backward reaction takes place at room temperature.
- In test tube Z, brown colour intensifies since high temperature favours the backward reaction.
- Brown colour of test tubes X, Y and Z remains same since there is no effect of change in temperature on the reaction.
Answer
(A) In test tube X , brown colour intensifies since backward reaction is favoured at low temperature.
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