I thought it would be easy Using PV=nRT I get P1V1=nRT1 P2V2=nRT2 (the n and R don't change if you compress or heat it). I rearrange and get V1=nRT1/P1 also T2=P2V2/nR. I also know that V1=(1/10)V2 by combining and canceling I get T2=P2T1/P1. T1=294 P1=14.7. so T2=P2*(294/14.7)
Long story short...