Question in adding H20 in equilibrium reaction

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Yeyang Zu 2J
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Joined: Fri Sep 29, 2017 7:06 am

Question in adding H20 in equilibrium reaction

Postby Yeyang Zu 2J » Sat Dec 09, 2017 9:56 pm

The photosynthesis reaction, 6 CO2(g) + 6 H2O(l) ⇌ C6H12O6(aq) + 6 O2(g), is endothermic. What effect will the following changes have on the equilibrium composition.
a) Water is added.

why the answer isn't no effect since water is not part of Equilibrium constand

Rachel Lu_dis1H
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Re: Question in adding H20 in equilibrium reaction

Postby Rachel Lu_dis1H » Sat Dec 09, 2017 10:03 pm

i think it's because C6H12O6(aq) is aqueous which means it's dissolved in water and adding water would change the concentration, changing the equilibrium constant

AtreyiMitra2L
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Re: Question in adding H20 in equilibrium reaction

Postby AtreyiMitra2L » Sat Dec 09, 2017 11:04 pm

yes i am confused by this too. a similar question was on one of the modules

15. The photosynthesis reaction, 6 CO2(g) + 6 H2O(l) ⇌ C6H12O6(aq) + 6 O2(g), is endothermic. What effect will the following changes have on the equilibrium composition.
a) Water is added.
b) The partial pressure of CO2 is decreased.

Can someone explain why adding water an effect please?


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