# Easy: find pressure

1. Homework Statement
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, the air is compressed to 26.0% of its original volume and the temperature is increased to 32.0°C.
What is the tire pressure? Pa

2. Homework Equations
Pv=nRT P1V1/T1= P2V2/T2

3. The Attempt at a Solution

i used p1v1/t1=p2v2/t2 and got 4.15 Pa but it was wrong

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make sure you have the same units for p1 and p2

yes i checked it. i used 1 atm for the original pressure and then changed it to pa

alphysicist
Homework Helper
Hi zcabral,

However, here I think you forgot to include p1 in your calculation. Or did you not convert it? Atmospheric pressure in pascals is about $$1.013\times 10^5$$ (did you use that number?), so the pressure your getting in your first post is tiny.