Physics
posted by MP .
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, the air is compressed to 28.0% of its original volume and the temperature is increased to 36.0°C.
a) What is the tire pressure?
b) After the car is driven at high speed, the tire air temperature rises to 85.0°C and the interior volume of the tire increases by 2.00%. What is the new tire pressure (absolute) in pascals?

P1V1/T1=P2V2/T2
P2= P1V1T2/T1V2= you do it
V2=.28V1
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