Please show step by step please. Answers are given, just need to know how to work...
Please show step by step please. Answers are given, just need to know how to work them.
12) On a cold day, you take in 4.2 L of air into your lungs at a temperature of 0
Homework Answers
12) when pressure is constant
V1/T1 = V2/T2...
4.2/273 = V2/(273+37)...
V2 = 4.2*310/273 = 4.8 L..
13) from P*V = n*R*T...
n = P*V/(R*T) = 101.3**4.2/(8.314*300)=0.17 moles...
here R is universal gas constant = 8.314 L kPa K^-1 mol^-1
The volume of air is proportional to the absolute
temperature.
T1 = 273 degrees
T2= 310 degrees,
So V2/V1 = 310/273
V1 = 310 / 273 * 4.2 L
= 4.8
partB
just use ideal gas law:
pV = nRT
101300*(4.20/1000) = n*8.314*(27+273)
n = 0.17 mole
partB
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