Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: sunshin3 on August 03, 2005, 12:21:09 AM
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Can anyone please help me on this question becausei don't know how to explain this question.i don't have my chem book so i don't really know get it, thanks :)
a) could a xylophone be considered a "quantized" musical instrument? explain.
(i think the answer is probably ''yes'', but is it because there is something to do with waves?)
b) consider two watches, one a digital and the other an analog watch with hands. which is more ''quantized''? explain.
(i think i know which one,but how should i explain it?)
i have another question related to the following problem. i tried to figure it out but it seems like it's missing some info. but maybe it's because i am er....dumb.
a gaseous mixture of O2, H2, and N2 has a total pressure of 1.50 atm and contains 8.20g of each gas. find the partial pressure of each gas in the mixture.
again, i would like to thank everyone that has the patience to look at my questions, doen't matter if you can figure it out or not. thanks!
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a. xylophone is quantised because of the specific tune each key produces. eg. each stroke produces do, re or mi. it cannot produce a tune that is in between do, re or mi.
b. the digital watch is more quantised. [think of the xylophone]
c. assume each gas is perfect, so u can use PV = nRT to solve. n (the number of moles) is given by mass divide by molar mass.
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thanx!