thermodynamics
posted by chi .
an automobile tire contains a certain volume of air at 30 psig and 70 degree fahrenheit. The barometric pressure is 29.50 in.Hg. If due to running conditions the temperature of the air in the tire rises to 160 fahrenheit, what will be the gage pressure? assume that the air is an ideal gas and that the tire does not stretch.

thermodynamics 
popoy
37.5 psig
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