## Test 2 Alveoli question

$\Delta p \Delta x\geq \frac{h}{4\pi }$

ariana_apopei1K
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### Test 2 Alveoli question

Hi everyone!
I would love some quick clarification on question 1 from test 2: anytime we are given the diameter in this type of question we substitute it directly in for delta x? As in no manipulations or using formulas, the diameter covers the potential position for the molecule?
Thanks and good luck tomorrow!

Alexa_Henrie_1I
Posts: 61
Joined: Fri Sep 29, 2017 7:03 am

### Re: Test 2 Alveoli question

Yes the position in question 1 is just the diameter, 2x10^-4 m.

ariana_apopei1K
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### Re: Test 2 Alveoli question

Alexa_Henrie_3B wrote:Yes the position in question 1 is just the diameter, 2x10^-4 m.

Perfect, thank you!

kateminden
Posts: 63
Joined: Fri Sep 28, 2018 12:24 am

### Re: Test 2 Alveoli question

Yes, because in the problem, the electron's position could be anywhere within the alveoli sac (therefore, within the diameter), and could not be outside of it, therefore that is the range or uncertainty of the position (delta x).

Anjali 4A
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Joined: Fri Sep 28, 2018 12:28 am

### Re: Test 2 Alveoli question

Some questions give the radius instead of the diameter, in that case would we multiply the radius by 2?

ariana_apopei1K
Posts: 89
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### Re: Test 2 Alveoli question

Anjali 4A wrote:Some questions give the radius instead of the diameter, in that case would we multiply the radius by 2?

I think that's correct yeah!