The error in the student's reasoning happened as they get confused between the beta minus decay and beta plus decay.
<h3>What is beta minus decay?</h3>
A neutron is converted into a proton in beta minus, increasing the atomic number of the atom.
- The proton is positive, while the neutron is neutral.
- The nucleus also produces an electron and an antineutrino in order to ensure charge conservation.
In the given question beta minus decay is not occur as atomic number of the daughter nuclei does not increases. Rather than this in the given decay atomic mass of the daughter nuclei is less than the parent nuclei means plus beta decay is happened there.
Hence the error is in predicting the correct particle with charge.
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Answer:
Explanation:
Given information:
A designed dialysis unit consists of a large no of small hollow fibers,
Considering the one fiber,
By using the volume of blood, we have :
where:
L = 30cm = (30× 10) mm = 300 mm
Volume = 80 ml = 80 × 10³ mm
From the above equation, making D the subject, we have:
D² = 339.53
D = 18.43 mm
D = 1.843 cm
However, suppose we consider the laminar flow, the pressure loss in a single fiber can be determined as follows:
where;
Recall:
Finally, the number of needed to be used =
=
= 539.35
I think it would be a law