Lyndon's Week 9 WS #8 Part C

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Hena Sihota 1L
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Lyndon's Week 9 WS #8 Part C

Postby Hena Sihota 1L » Sat Dec 09, 2017 3:36 pm

Number 8 asks: Will the equilibrium constant K increase, decrease, or remain constant after the following changes to the exothermic reaction 4A(g)+3B(g)<-->2C(g)
Part C States: The stoichiometric coefficients are doubled _________
Lyndon's answer key says that "either decrease or increase" is the correct answer. I don't understand why K can either increase or decrease when the stoichiometric coefficients are doubled.

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Re: Lyndon's Week 9 WS #8 Part C

Postby Chem_Mod » Sat Dec 09, 2017 4:28 pm

This was sort of a flawed question that I put in. Working out the math, you would get that the new K is the old K squared. However, squaring a number can either increase or decrease it. 1/4 squared will result in 1/16 (overall decrease) whereas 4 squared will result in 16 (overall increase). What you do know for certain is that the new K is the old K squared.

-L


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