Answer the second question please. Answer # 1 is correct. Make sure the answer i

Question

Answer the second question please. Answer # 1 is correct.

Make sure the answer is correct please. Thanks!

Homework: HW2 Of Ch17&20 Deadline: 100% until Monday, January 30 at 11:59 PM Tipler6 17. P.054. V 2 An automobile tire is filled to a gauge pressure of 176 kPa when its temperature is 20 C. (Gauge pressure is the difference between the actual pressure and atmospheric pressure.) After the car has been driven at high speeds, the tire temperature increases to 53 C. 1) (a) Assuming that the volume of the tire does not change, and that air behaves as an ideal gas, find the gauge pressure of the air in the tire. 207.2 kPa Submit You currently have 1 submissions for this question. Only 10 submission are allowed. You can make 9 more submissions for this question Your submissions 207.2 Computed value: 207.2 Submitted: Sunday, January 29 at 8:29 PM Feedback Correct (b) Calculate the gauge pressure if the volume of the tire expands by 10% kPa Submit

Explanation / Answer

1)

a)

P1 = actual pressure initially = 1.76 x 105 + 1.01 x 105

P2 = actual pressure finally = ?

T1 = 20 + 273 = 293 K

T2 = 53 + 273 = 326

using

P1 /T1 = P2 /T2

(1.76 x 105 + 1.01 x 105 )/293 = P2 /326

P2 = 3.1 x 105

gauge pressure = P2 - 1.01 x 105 = (3.1 x 105) - (1.01 x 105 ) = 209 kPa

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