Cant figure this one out, need both parts General Genetics (2014-sp xyy.WWN5699:

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Cant figure this one out, need both parts

General Genetics (2014-sp xyy.WWN5699: Homework #9 x eChemistry The Science ln x -)C L smartwork.wwnorton.com/sw/mod/smartwork/view.php?id=257521 smartwork wsu - Pullman Campus, Principles of Chemistry II Chem 106, Spring 2014, Professor Wherland/Professor Clark SMARTWORK 3.0-wwN5699-HOMEWORK #9 Print Calculator Periodic Table Ebook C Question 10 of 10 (1 point) Incorrect Incorrect Volcanic Eruptions During volcanic eruptions, gases as hot as 973 K (700 °C) and rich in SO2 are released into the atmosphere. As air mixes with these gases, the following reaction converts some of this SO2 into SO3: 2 SO Calculate the value of Kp for this reaction at 973 K. What is the ratio of Pso2 to Pso3 in equilibrium with P02 = 0.21 atm? SO2(g)-296.8 248.2 02g) o SO3(g) -395.7 256.8 205.0 Number Number sO SO Tools Hint Check AwerView Solution 7 89 10 Progress 1 2 34 5 6 78 9 Record my Grade 10:12 PM 3/13/2014

Explanation / Answer

delta Go = (delta Ho) -T *(delta So)

So, for the given reaction,

delta Go = 2*(-395.7*1000- 973*256.8) - 2*(-296.8*1000 - 973*248.2) - (0-973*205) J.

=-15070.6 J.

delta Go = -RTln(Kp)

So, putting T=973 R =8.314

we have Kp= 6.4429.

Kp= P(SO3)^2/[P(SO2)^2*P(O2)]

So, P(SO2)/P(SO3) = sqrt(1/P(O2)*Kp)

=0.8597.

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