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What pressure will your tire gauge now show?

admin — Fri, 20 Nov 2009 19:04:57 +0000

On a cool morning, when the temperature is 13 C, you measure the pressure in your car tires to be 30 psi. After driving 50 mi on the freeway, the temperature of your tires is 42 C.What pressure will your tire gauge now show?

T1 = 13 C
T2 = 42 C
P1 = 30 psi
P2 = ?
By perfect gas equation, as V is constant,
P1V = RT1
P2V = RT2
P2/P1 = T2/T1
P2 = P1xT2/T1

P2 = 30×42/13 = 96.92 psi

admin — Thu, 19 Nov 2009 21:43:08 +0000

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admin — Fri, 13 Nov 2009 09:20:09 +0000

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Sumitomo High Performance HTR Z Tire (275/40-17)

admin — Fri, 13 Nov 2009 01:56:09 +0000

admin — Tue, 10 Nov 2009 11:58:10 +0000

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admin — Wed, 04 Nov 2009 16:28:06 +0000

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