Consider the system SO 3 ( g ) ⇌ SO 2 ( g ) + 1 2 O 2 ( g ) Δ H = 98.9 kJ (a) Predict whether the forward or reverse reaction will occur when the equilibrium is disturbed by 1. adding oxygen gas. 2. compressing the system at constant temperature. 3. adding argon gas. 4. removing SO 2 ( g ). 5. decreasing the temperature. (b) Which of the above factors will increase the value of K ? Which will decrease it?
Consider the system SO 3 ( g ) ⇌ SO 2 ( g ) + 1 2 O 2 ( g ) Δ H = 98.9 kJ (a) Predict whether the forward or reverse reaction will occur when the equilibrium is disturbed by 1. adding oxygen gas. 2. compressing the system at constant temperature. 3. adding argon gas. 4. removing SO 2 ( g ). 5. decreasing the temperature. (b) Which of the above factors will increase the value of K ? Which will decrease it?
Solution Summary: The author explains Le Chatelier's principle: if at equilibrium, any change in temperature, concentration or pressure is applied to a system, the shift in equilibrium takes place to counteract the change.
Draw the major substitution products you would expect for the reaction shown below. If substitution would not occur at a significant
rate under these conditions, check the box underneath the drawing area instead.
Be sure you use wedge and dash bonds where necessary, for example to distinguish between major products.
Note for advanced students: you can assume that the reaction mixture is heated mildly, somewhat above room temperature, but
strong heat or reflux is not used.
Cl
Substitution will not occur at a significant rate.
Explanation
Check
:☐
O-CH
+
Х
Click and drag to start
drawing a structure.
Draw the major substitution products you would expect for the reaction shown below. If substitution would not occur at a significant
rate under these conditions, check the box underneath the drawing area instead.
Be sure you use wedge and dash bonds where necessary, for example to distinguish between major products.
Note for advanced students: you can assume that the reaction mixture is heated mildly, somewhat above room temperature, but
strong heat or reflux is not used.
Cl
C
O Substitution will not occur at a significant rate.
Explanation
Check
+
O-CH3
Х
Click and drag to start
drawing a structure.
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