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Sever21 [200]
4 years ago
11

Determine which factors will increase the reaction rate and which factors will decrease te reaction rate.

Physics
1 answer:
Elodia [21]4 years ago
8 0

Answer: increase reaction rate side : increase surface area

Increase temperature

Add a catalyst

Decrease reaction rate side :

Decrease surface area

Decrease temperature

Decrease concentration

Explanation:

Got it right

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A 5.0-cm by 7.0-cm rectangular coil has 100 turns. Its axis makes an angle of 65° with a uniform magnetic field of 0.55 T. What
kotegsom [21]

Answer:

0.0814 Wb

Explanation:

L = length of the rectangular coil = 5 cm = 0.05 m

w = width of rectangular coil = 7 cm = 0.07 m

A = Area of the coil = L w = 0.05 x 0.07 = 35 x 10⁻⁴ m²

B = magnitude of uniform magnetic field = 0.55 T

θ = angle of axis of coil with magnetic field = 65°

Magnetic flux through the coil is given as

Φ = N B A Cosθ

Φ = (100) (0.55) (35 x 10⁻⁴ ) Cos65

Φ = 0.0814 Wb

4 0
4 years ago
Which of the given will facilitate a normal Diels–Alder reaction?
babymother [125]

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.

7 0
4 years ago
A 75 A resistor in a circuit has a current flowing through it of 2.0 A. What is
Reptile [31]

Answer:

The power dissipated by the resistor can be calculated as P = I^{2} R .

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, R = 75 ohm resistor (the unit is wrong i question because resistor's unit is ohm not Ampere).
  • Current flowing through the circuit is I = 2.0 A.
  • By using joules heating theory, P = I^{2} R,

                  or,   P = 2^{2} * 75

                  or,   P= 4*75

                 or,  P= 300 W.

  • So the power dissipated by the resistor in the circuit is 300 W.
7 0
3 years ago
Explain what surface tension is.
sergejj [24]
Surface tension<span> is a property of the surface of a liquid that allows it to resist an external force. for example, some objects can float on the surface of water, even though they are denser than water, and in the ability of some insectsto run on the water surface. This property is caused by cohesion of similar molecules, and is responsible for many of the behaviors of liquids.</span>
5 0
4 years ago
Read 2 more answers
Sound energy into electricity?
mrs_skeptik [129]
The vibrations created by noise can be converted to electrical energy through the principle of magnetic Induction, for example by using transducer.
7 0
4 years ago
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