A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol of CO, 0.43 mol of H2O, and some graphite. Some O2  is added to the system and a spark is applied so that the H2 reacts completely with the O2. Find the amount of CO in the flask when the system returns to equilibrium.

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Asked Jan 10, 2020
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 A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol of CO, 0.43 mol of H2O, and some graphite. Some O2  is added to the system and a spark is applied so that the H2 reacts completely with the O2. Find the amount of CO in the flask when the system returns to equilibrium. 

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Expert Answer

Step 1

Given,

0.13 mol of H2, 0.13 mol of CO, 0.43 mol of H2O and T = 600 K

Formula used:

Chemistry homework question answer, step 1, image 1
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Step 2

The equilibrium amounts of each substance are given.

So the equilibrium constant of the reaction: Kc= [ H2 ][ CO ][ H2O ]

Kc=[ 0.13 ][ 0.13 ][ 0.43 ] = 0.039

A spark is added to the system and all the H2 is consumed. This will result in ...

Chemistry homework question answer, step 2, image 1
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