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journeyburks07
20.08.2019 •
Physics
The gauge pressure in your car tires is 2.20 x 10^5 n/m^2 at a temperature of 35.0°c when you drive it onto a ferry boat to alaska. what is their gauge pressure (in atm) later, when their temperature has dropped to −38.0°c? (assume that their volume has not changed.)
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Ответ:
1.425 atm
Explanation:
Gauge pressure, P1' = 2.20 x 10^5 N/m^2 = 2.178 atm
Absolute pressure P1 = P1' + Po
where, Po be the atmospheric pressure
P1 = 2.178 + 1 = 3.178 atm
T1 = 35 degree C = 35 + 273 = 308 k
T2 = - 38 degree c = - 38 + 273 = 235 k
let final absolute pressure is P2. Use
P1 / T1 = P2 / T2
3.178 / 308 = P2 / 235
P2 = 2.425 atm
So, the final gauge pressure = 2.425 - 1 = 1.425 atm
Ответ:
b
Explanation: