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consider the following system at equilibrium or Casey equals 83.3 and Delta H equals -87.9 KJ...

consider the following system at equilibrium or Casey equals 83.3 and Delta H equals -87.9 KJ per mole at 500K
pcl3 + cl2 to pcl5
the production of PCL is favored when an indicate true or false for each
1 decreasing the temperature
2 decreasing the pressure by changing the volume
3 decreasing the volume
4 adding pcl5
5 adding Cl2

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Answer #1

1 decreasing the temperature (True)

reason : forward reaction is exothermic reaction so low temperatures favour forward reaction

2 decreasing the pressure by changing the volume (False)

reason : decreasing volume will leads to reaction shifts to number of moles decreases side

3 decreasing the volume (True)

reason : decreasing volume will leads to reaction shifts to number of moles decreases side

4 adding pcl5 (False)

addition PCl5 will leads to backward direction

5 adding Cl2 (True)

addition Cl2 will shift to forward direction

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