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darkdestroyer0888
06.12.2019 •
Chemistry
The best laboratory vacuum pump can generate a vacuum of about 1 ntorr. at 25 °c and assuming that air consists of n2 molecules with a collision diameter of 395 pm, calculate (a) the mean speed of the molecules, (b) the mean free path, (c) the collision frequency in the gas.
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Ответ:
a) 11550
b)35%
Step-by-step explanation:
Hi, to answer this question, first, we have to multiply the stadium capacity by the percentage in decimal form (75/100)
a)15400 x (75/100) = 11,550
For b), we know that 15400 is the 100% of the capacity, so, for 20790 the percentage will be:
15400/100= 20790/x
Solving for x
x= 20790 / 154
x= 135%
135%-100% = 35%
The percentage increase in the number of seats will be 35%