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emmasim [6.3K]
3 years ago
9

If chemical reaction A requires 270 kJ/mol of activation energy and chemical reaction B requires 180 kJ/mol of activation energy

, which chemical reaction will naturally occur first?
Biology
1 answer:
Tomtit [17]3 years ago
5 0

Answer:

Reaction B.

Explanation:

Hello,

In this case, since the physical meaning of activation energy defines how fast or slow a chemical reaction starts being undergone, we can infer that the greater the activation energy the slower it begins as it needs more energy and the smaller the activation energy the faster it begins since it needs less energy to start.

In such a way, since reaction B has a lower activation energy, it will readily start over reaction A.

Best regards.

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<h3>Explanation</h3>

A cross between a true breeding short plant (homozygous for short, suppose tt), and a cross between a true breeding tall plant (homozygous for tallness, suppose TT) would result in all the offspring being heterozygous for the traits, meaning they would each have an allele of shortness (t) and an allele of tallness (T).

Considering the offspring were all tall, we understand that the allele for tallness must have been dominant over the allele for shortness to present itself over it. Hence, the term describing the gene for tallness would be dominant, and the term describing the gene for shortness would be recessive.


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