A polycondensation reaction takes place between 1.2 moles of a dicarboxylic acid, 0.4 moles of glycerol (a triol) and 0.6 moles
1 answer:
Answer:
A) i) using statistical theory of floxy
(Pa)c = 0.816
(Pb)c = 0.816
ii) using Carothers theory
( Pc ) = 0.917
B) To Obtain the measured value of critical extent of reaction ( 0.866) 1 mol of Glycerol will react with 1 mol of dicarboxylic acid, but the same can not be applied to our obtained value because our stoichiometry is different
Explanation:
Given data :
Polycondensation reaction takes place between : 1.2 moles of dicarboxylic acid , 0.4 moles of glycerol and 0.6 moles of ethylene glycol
A) Calculate the critical extents of reaction for gelation
i) using statistical theory of floxy
(Pa)c = 0.816
(Pb)c = 0.816
ii) using Carothers theory
( Pc ) = 0.917
attached below is the detailed solution
B) To Obtain the measured value of critical extent of reaction ( 0.866) 1 mol of Glycerol will react with 1 mol of dicarboxylic acid, but the same can not be applied to our obtained value because our stoichiometry is different
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Answer:
<u>I had to search the Figure on Google to solve this question.</u>
a) The magnitude of the force F₃ is:
And the direction of F₃:
(with respect to the y-direction, in the third quadrant)
b) P = 4.22 N
Explanation:
<u>I had to search the Figure on Google to solve this question.</u>
a) We can find the force of the third person as follows:
So, in x-direction we have:
In y-direction we have:
The magnitude of the force F₃ is:
To find the direction of F₃ we need to calculate its angle with respect to the y-direction (in the third quadrant):
<em>b) If the third person exerts the force found in part (a) the car will stop, so the only way for the cart to accelerate at 200 m/s² is that the third person does not exert the force found in a. </em>
<u>To find the weight of the cart when it accelerates at 200 m/s², we need to consider: F₃ = 0</u>.
First, we need to find the cart's mass. Since the car is moving in the x-direction we have:
Now, the weight of the cart is:
I hope it helps you!