A propane cylinder having the volume of 20 liters, has been used outside in a temperature of 8 degrees c
And found to be virtually empty . The valve is closed and is left out in the sun where it's temperature increases to 40 degrees c determine;
A) the pressure of the cylinder at this temperature
B) the mass of propane still in the cylindery
pV=(m/M)RT T=8+273=281 T1=281+40=321 M=44 m=44 V=20 R=8.314 a) p=mRT1/(VM)=8.314*321/20=133.44 b) m=44 --- molecular mass
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