For the precipitation of AgCl by Ag+ ions and HCl:

  • Option 1)

    \delta H = 0

  • Option 2)

    \delta G = 0

  • Option 3)

    \delta G= negative

  • Option 4)

    \delta H = \delta G

 

Answers (1)

As learnt in

Spontanous process -

\Delta G= \Delta H-\Delta T

 

- wherein

For spontanouse process \Delta G must be negative.

 

 Precipitation of AgCl is a spontaneous process.

Therefore, \Delta G must be negative.


Option 1)

\delta H = 0

This option is incorrect

Option 2)

\delta G = 0

This option is incorrect

Option 3)

\delta G= negative

This option is correct

Option 4)

\delta H = \delta G

This option is incorrect

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