Using the data in the table, determine the rate constant of...

Using the data in the table, determine the rate constant of the reaction and select the appropriate units. A + 2B ightarrow C + D k = Trial [A] (M) [B] (M) Rate (M/s) 1 0.400 0.390 0.0177 2 0.400 0.780 0.0177 3 0.800 0.390 0.0708 Units

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Transcript

00:01 Hello student we are provided with the reaction.

00:03 Okay so the reaction is a plus 2b giving c plus b okay so now we have to find out the order of the reactants in terms of a and b also.

00:22 Okay so we have to find out the rate with respect to the concentration of a and concentration of b that is let's say a to the power n and b to the power m.

00:32 So the total order of the reaction will be n plus m.

00:37 We have to find out n and m.

00:39 And we are provided with a table also.

00:42 Okay, so from using that table, we can find or we can have different equations.

00:47 Okay.

00:48 So using the first row in the table, we can make rate 1, that is r1 is equal to rate is given as 0 .01 .077 mole per second.

01:02 Okay, 7 -7.

01:05 Then, which is equal to, we can write like this, the rate of a reaction can be expressed as rate is equal to rate constant k into concentration of the reactant to the power n into concentration of the reactant b to the power m.

01:22 Okay, so here r1 is equal to 0 .01777 is equal to a to the power.

01:29 Here the concentration of a is given, that is, k into 0 .4 .00 to the power n into concentration of b is given 0 .390 to the power m.

01:45 Okay.

01:46 So r2 is equal to 0 .177 is equal to k into 0 .4 .00 to the power n into 0 .780 to the power m.

02:02 Okay...

Question

Using the data in the table, determine the rate constant of the reaction and select the appropriate units. A + 2B ightarrow C + D k = Trial [A] (M) [B] (M) Rate (M/s) 1 0.400 0.390 0.0177 2 0.400 0.780 0.0177 3 0.800 0.390 0.0708 Units

Please give Ace some feedback