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Q.

Consider this equation and the associated value for ΔH.

2H2(g)+2Cl2(g)4HCl(g); ΔH=92.3kJ

Which statement about this information is incorrect?

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a

If the equation is reversed. the ΔH value equals +92.3 kJ.

b

The four HCl bonds are stronger than the four bonds in H2 and Cl2.

c

The ΔH value will be -92.3 kJ if the HCl is produced as a liquid

d

23.1 kJ of heat will be evolved when 1 mol of HCl(g) is produced.

answer is C.

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Detailed Solution

Given equation is,

2H2(g)+2Cl2(g)4HCl(g)

In this case The ΔH value will not be equal to -92.3 kJ if the HCl is produced as a liquid.

Thus this option is incorrect.

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