The pressure gauge on a tire reads 31 lb/in^2(214kPa), and the temperature is 15

Question

The pressure gauge on a tire reads 31 lb/in^2(214kPa), and the temperature is 15 degrees celcius. after a few hours of driving, the pressure is checked again, now the gauge reads 35 ln/in^2(241kPa) suppose you decide to bleed air from the tires since the manufacturer suggests keeping the pressure between 28 lb/in^2 and 32 lb/in^2. if you let out enough air so that the pressure return to 31 lb/in^2. what percent of the air molecules was let out of the tires? what is the gauge pressure after the tires cool 15 degrees celcius.temperature had rose to 40 degrees celcius.

Explanation / Answer

a)Percent air let out= (P2-P1)/P2=(342-315)/342 =7.9% (Since the absolute pressure decides no. of molecules)

b)P2=P1*T2/T1=45.7*288/313=42 Lb/in2=27.3lb/in2 gauge

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.