In at experiment, 
gas is prepared and taken into 3 test tubes X, Y and Z. 
gas which is brown in colour dimerises into 
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 whay?
Text Solution
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It is an exothermic reaction, hence the forward reaction is favoured at low temperature which means colourless 
will be formed resulting in decrease in intensity of brown colour. High temperature favours backward reaction resulting in formation of 
thus intensifying brown colour.
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