Answer:
3A
Explanation:
Using Ohms law U=I×R solve for I by I=U/R
The train is traveling 26 meters A second .
The evaporation rate of the n-Hexane is 
<u>Explanation</u>:
This is a situation regarding diffusing A through non-diffusing B.
A = n-Hexane B=Air
Where the molar flux is provided by,



the vapor pressure at hexane

For wind, assume negligible hexane is present, hence 
Now,







where T = 298 K
substituting all in the equation, we get


Now,Flux
area = Molar rate of evaporation
Evaporation rate = 
Evaporation rate =
Answer:

Explanation:
The mass inside the rigid tank before the high pressure stream enters is:



The final mass inside the rigid tank is:



The supplied air mass is:


