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Pepsi [2]
2 years ago
14

1. Consider the potential energy diagram shown below. This graph shows the chemical potential energy in a reaction system over t

ime. The y-axis is potential energy in kilojoules. The x-axis is the reaction progress or time.
Does this graph represent an endothermic or an exothermic reaction? Explain your answer.
What is the enthalpy change, ΔH, for this reaction? Show your work.
What is the activation energy, Ea, for this reaction? Show your work.
THE GRAPH IS BELOW
Physics
1 answer:
Gwar [14]2 years ago
4 0

150 kJ of energy was given out over the course of the reaction and 200kJ is required for the reactants to be converted into products.

<h3>What is the potential energy graph?</h3>

We know that the combination of the reactants is what leads to the formation of products. The interaction of the reactants and the products is what is shown on the potential energy curve. The hump at the highest point of the graph is the activation energy while the difference between the energy of the reactant and the products is the enthalpy of the reaction.

Now; the enthalpy change is given as;

ΔH = 200 kJ - 50 kJ = 150 kJ

Ea = 250 kJ - 50 kJ = 200kJ

We can see that 150 kJ of energy was given out over the course of the reaction and 200kJ is required for the reactants to be converted into products.

Learn more about reaction profile:brainly.com/question/23528085

#SPJ1

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Question 10 of 34
labwork [276]

Julia walks from the park, which is six blocks east of her house, to the store, which is three blocks east of her house. Julia walks for 5 minutes. This walk's average speed will be 1.2 blocks per minute. Option B is correct.

<h3>What is displacement?</h3>

Displacement is defined as the shortest distance between the two points. Distance is the horizontal length covered by the body. While displacement is the shortest distance between the two points.

Displacement is a vector quantity .its unit is m.

The average velocity on this walk will be;

\rm v_{avg}= \frac{d}{t} \\\\ \rm v_{avg}= \frac{6 \ block+ 3 \ block }{5 \ minute } \\\\ v_{avg}=1.4  \ block /min

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To learn more about displacement refer to the link; brainly.com/question/10919017

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3 0
2 years ago
Which two points on the wave shown in the diagram below are in phase with each other?
NNADVOKAT [17]

Answer:

4. B and D

Explanation:

Two points along a transverse wave (such as the one in the figure) are said to be in phase when:

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Basically, we say that two points are in phase when they are separated by a complete cycle (one complete oscillation) of the wave.

For this wave, we see that point B and C have same displacement, but they are not in phase since in B the oscillation is going down while in C is going up.

Instead, B and D are in phase, because they are separated by one complete cycle: both points have same displacement and the oscillation is going in the same way for both of them.

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Statement that combines energy and mass into one law
inysia [295]

Answer:

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3 years ago
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