Physics
posted by Janus .
An automobile tire contains a certain volume of air at 30 psig and 70 °F. The barometric pressure is 29.50 Hg. If due to running conditions, the temperature of air in the tire rises to 160 °F. What will be the gauge pressure?
Assume that air is an ideal gas & that the tire does not stretch.

Physics 
drwls
At constant volume, the absolute pressure increaes in proportion to the absolute temperature increase.
P2/P1 = (344K)/(295K)= 1.166
============
29.50 ihches Hg = 14.45 psia atmospheric pressure
============
Original tire absolute pressure = 30.00 + 14.45 = 44.45 psia
Final tire absolute pressure = 44.45 * 1.166 = 51.83 psia
Final tire guage pressure = 51.83  14.45 = 38.4 psia 
Physics 
drwls
Make that psig for my last answer. (pounds per square inch, guage). The number is OK

Physics 
Janus
Thank you very much
Respond to this Question
Similar Questions

Chemistry
Assume that a bicycle tire with an internral volume of 1.50 liters contains 0.405 mole of air. The tire will burst if the internal pressure is 7.25 atm. What is the temperature of the air in the tire if a blowout occurs? 
physics
An automobile tire has a volume of 1.60 x 102 m3 and contains air at a gauge pressure (pressure above atmospheric pressure) of 167 kPa when the temperature is 0.00°C. What is the gauge pressure (in kPa) of the air in the tires when … 
thermal physics
An automobile tire has a volume of 1.60 x 102 m3 and contains air at a gauge pressure (pressure above atmospheric pressure) of 167 kPa when the temperature is 0.00°C. What is the gauge pressure (in kPa) of the air in the tires when … 
chem 1p1
An automobile tire at 22oC with an internal volume of 20.0L is filled with air to a total pressure of 30. psi(pounds per square inch). [1 atm = 14.696 lb/in2]. What is the amount in moles of air in the tire? 
Physics
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 … 
physics
driving on a hot day causes tire pressure to rise. what is the pressure inside an automobile tire at 288, if the tire has a pressure of 30 psi at 318k? 
physics
A tire with an inner volume of 0.0250 m3 is filled with air at a gauge pressure of 30.3 psi. If the tire valve is opened to the atmosphere, what volume outside of the tire does the escaping air occupy? 
Physical Science
A tire contains air at a pressure of 2.8 bar at 10C. If the tire’s volume is unchanged, what will the air pressure in it be when the tire warms up to 35C as the car is driven? 
thermodynamics
an automobile tire contains a certain volume of air at 30 psig and 70 degree fahrenheit. The barometric pressure is 29.50 in.Hg. If due to running conditions the temperature of the air in the tire rises to 160 fahrenheit, what will … 
chemistry
An automobile tire contains air at a pressure of 200. kPa and 25°C. The tire and its air heat up during traveling. If the pressure increases to 250. kPa but the volume remains the same, what is the temperature of the air inside the …