š. How will the amount of SO3 at equilibrium in the reaction 2 SO, (g) 2 SO, (g)
ID: 573755 • Letter: #
Question
š. How will the amount of SO3 at equilibrium in the reaction 2 SO, (g) 2 SO, (g) 02 (g) (Endothermic reaction) change in each of the following cases. Briefly explain your reasoning (simply stating "Le Chatelier's principle is insufficient). Unless stated otherwise, you may assume the volume doesn't change a. Oxygen gas is added. b. The volume of the container is decreased. c. The pressure is increased by adding argon gas. d. The temperature is decreased. e. Gaseous sulfur dioxide is removed. A sample of gaseous nitrosyl bromide, NOBr, was placed in a rigid flask, where it decomposed at 25.0 according to the following reaction: 9. 2 NOBr (g) 2 NO (g) Br2 (g) At equilibrium the total pressure and the density of the gaseous mixture were found to be 0.0515 atm and 0.1861 g/L, respectively. Calculate the value of Kp for the above reaction.Explanation / Answer
a.when O2 gas is added reaction shifts to left side,since number of moles increases on right leading to more reactions on right resulting left hand moleculesd.
b.decreasing volume leads to shift of equilibrium to left,since the no of moles on left is greater than those on the right
c.adding inert gas has no effect consideribly
d.it is a endothermic reaction,so,on adding temparature the equilibrium shifts to the left .since,intake of heat favours right hand side molecules to react
e.equilibrium moves to right,since there will be less molecules for the O2 to react and form SO3 molecules
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