# Question 7 use your knowledge of le chateliers

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Question 7 Use your knowledge of Le Chatelier's Principle to answer the following question: Which of the following (if any) will lead to a change in for the following reaction: 2NO (g) N O (g) Check all that apply 2 2 4 adding NO gas 2 removing N O gas 2 4 changing the volume increasing the temperature Correct! Correct!
Yes. Only changing the temperature will lead to a change in the value of K.
9/30/2018 LE11 - Le Chatelier's Principle: Fa18 - McCord CH302 (50015) 11/12 1 / 1 pts Question 8 Please match the equation name with its relationship. van't Hoff Equation In the last section we showed how is dependent on and Δ . The derived equation was: = −Δ r × There is a very convenient formula that will allow us to factor out the that comes from entropy. By setting up this equation under two conditions (1 and 2) one can arrive with the following equation: ln 2 1 = Δ 1 1 1 2 So why is this familiar? This is a close copy of the Clausius-Clapeyron equation () which related vapor pressure and the heat of vaporization. This version relates 's at two different temperatures and is known as the van't Hoff equation When you really think about it, the Clausius-Clapeyron equation is just a special case of the van't Hoff equation. The van't Hoff equation deals with an equilibrium condition in a general sense, while the Clausius-Clapeyron equation is a very specific case of liquid/gas physical equilibria. ( ) ( ) ( ) . Claussius­Clapeyron Equation Relates two Vapor Pressure v Correct! Correct! van't Hoff Equation Relates two K values at two Correct! Correct!
9/30/2018 LE11 - Le Chatelier's Principle: Fa18 - McCord CH302 (50015) 12/12 Yes. The Claussius­Clapeyron Equation relates vapor pressures and temperatures while the van't Hoff Equation related K values and temperatures. Quiz Score: 10 out of 10