ISX Messages 120 Reaction score 0 Thread starter Apr 29, 2007 #1 How do I determine pressure in psi, if I know the temperature. Like I aired my tires up to 80psi at 80F, how would I calculate what the pressure in my tires would be at 90F?
How do I determine pressure in psi, if I know the temperature. Like I aired my tires up to 80psi at 80F, how would I calculate what the pressure in my tires would be at 90F?
russ_watters Mentor Insights Author Messages 23,899 Reaction score 11,354 Apr 29, 2007 #2 With a constant volume: P1/T1=P2/T2. T is absolute temperature, so 80F is actually 80+460=540 R (Rankine scale).
With a constant volume: P1/T1=P2/T2. T is absolute temperature, so 80F is actually 80+460=540 R (Rankine scale).