EASY QUICK CHEM QUESTION!! Which line indicates a higher reaction rate?
2 answers:
Answer:The correct answer si option B.
Explanation:
According to Arrhenius equation:
k = Rate constant of the reaction at temperature T.
A = frequency factor
= Activation energy.
R = universal gas constant
The graph clearly tells us that the activation energy of the reaction A is more than the reaction B.
This means that rate constant of the reaction A is smaller than the rate constant of the reaction B according Arrhenius equation.
As we know that higher the value of rate constant more will be the rate of the reaction.Then the rate of reaction B is more than that of the rate of reaction A.
Hence, the the correct answer is option B.
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Answer:
Explanation:
count given by old sample = .97 disintegrations per minute per gram
count given by fresh sample = 6.68 disintegrations per minute per gram
Half life of radioactive carbon = 5568 years
rate of disintegration
dN / dt = λ N
In other words rate of disintegration is proportional to no of radioactive atoms present . As number reduces rate also reduces .
Let initial no of radioactive be N₀ and after time t , number reduces to N
N₀ / N = 6.68 / .97
Now
λ is disintegration constant
λ = .693 / half life
= .693 / 5568
= .00012446 year⁻¹
Putting the values in the equation above
1.929577 = .00012446 t
t = 15503.6 years .
Here are my quick example slides:
1st Picture:
just a title page
2nd Picture:
I just gave the definition of an organelle you could go more in-depth. The picture doesn't have to be there, of course.
3rd Picture:
Examples of organelles in plant and animal cells, these are just examples of how I would do one.
This was just to show how you could do it because it would be kind of hard for me to explain just in words.
Hope I could help! c:
1st Picture:
just a title page
2nd Picture:
I just gave the definition of an organelle you could go more in-depth. The picture doesn't have to be there, of course.
3rd Picture:
Examples of organelles in plant and animal cells, these are just examples of how I would do one.
This was just to show how you could do it because it would be kind of hard for me to explain just in words.
Hope I could help! c: