Compression and photosynthesis. 11.115 hmwk

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kshalbi
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Compression and photosynthesis. 11.115 hmwk

Postby kshalbi » Wed Nov 11, 2015 2:40 pm

6CO2 + 6H2O-----> C6H12O6 + 6O2. I don't understand why compressing the system has, according to the book, little to no effect on the shift towards reactants or products. I thought that since pressure was being increased, the products are favored because there are fewer molecules on the product side.

Francesca Genera 3F
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Re: Compression and photosynthesis. 11.115 hmwk

Postby Francesca Genera 3F » Wed Nov 11, 2015 5:24 pm

Change in pressure does not change K. In this case, even though more pressure may be on the reactants, the reaction will eventually reach equilibrium again and balance out. Refer to page 129 in the course reader.

Orly Termeie 3I
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Re: Compression and photosynthesis. 11.115 hmwk

Postby Orly Termeie 3I » Wed Nov 11, 2015 5:26 pm

Since H2O is a liquid, you would not consider its moles when determining the effect the compression would have. Thus, the number of moles on the products and reactants side would be almost identical. So there would not really be an effect. Hope this helped!

Jordanmjones13
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Re: Compression and photosynthesis. 11.115 hmwk

Postby Jordanmjones13 » Thu Nov 12, 2015 4:23 pm

Why would you not include H2O?

Orly Termeie 3I
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Joined: Fri Sep 25, 2015 3:00 am

Re: Compression and photosynthesis. 11.115 hmwk

Postby Orly Termeie 3I » Thu Nov 12, 2015 6:19 pm

Since the reaction is already occurring in H2O, and is considered a liquid, it will not affect the reaction.


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