Constants 1 Periodic Table Part A An automobile tire has a maximum rating of 38.

Question

Constants 1 Periodic Table Part A An automobile tire has a maximum rating of 38.0 psi (gauge pressure) The tire is inflated (while oold) to a volume of 11.8 L and a gauge pressure of 36.0 psi (Note: The gauge pressure is the difforencoe between the total pressure and atmospherie prensure, In this case, assume that atmospheric pressure is 14.7 pai j at a temperature of 120 C While driving on a hot day, the tire warms to 65.0 C and its volume expands to 12.2L what isth total pressure (gauge prossum . atmospheric pressure)inthe bre aher warming on a hot day? Express your answer in atmospheres to 3 significant figures atm Submit Request Answer Part B This question will be shown after you complete previous question(s) Provide Feedback Next >

Explanation / Answer

at 12C

P1 = total pressure = gauge pressure - atmosperic pressure

= 36.0 - 14.7 psi

= 21.3 psi

V1 = 11.8mL

T2 = 12C = 285K

at 65C

P2 =?

V2 = 12.2L

T2 = 65C = 338K

Using the equation of state P1V1/T1 = P2V2/T2

21.3 x 11.8 / 285 = P2 x 12.2 /338

Thus

P2= 24.43 psi = Total pressure

gauge pressure = total pressure + atmospheric pressure

= 24.43 + 36

= 60.43 psi

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