Determine which factors will increase the reaction rate and which factors will decrease te reaction rate.
1 answer:
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Answer:
D
Explanation:
- The rate of the Diels-Alder is orders of magnitude faster if there is an electron-withdrawing group on the dienophile. For example, replacing a hydrogen on ethene with the electron-withdrawing group CN results in about a 10^5 increase in the reaction rate.
- Other common electron withdrawing functional groups that will accelerate the Diels Alder reaction of dienophiles include aldehydes, ketones, and esters.
- In short, any functional group conjugated with the pi bond which can act as a pi acceptor will accelerate a Diels-Alder reaction with a typical diene.
- See attachment for graphical explanation.
Answer:
The power dissipated by the resistor can be calculated as .
Explanation:
- Joules heating law states that any conductor passed with the electric current produces heating effect which is the electric power loss.
- The given circuit has,
resistor (the unit is wrong i question because resistor's unit is ohm not Ampere).
- Current flowing through the circuit is
.
- By using joules heating theory,
,
,
.
- So the power dissipated by the resistor in the circuit is 300 W.