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  • 10-03-2020
  • Engineering
contestada

A gas has a pressure of 5 psi at 50 F. What is the pressure at 0 F?

Respuesta :

thamimspartan thamimspartan
  • 15-03-2020

The pressure at 0°F would be 4.5psi

Explanation:

Given-

Pressure, P1 = 5psi

Temperature, T1 = 50°F

T2 = 0°F

P2 = ?

To convert Fahrenheit to Kelvin we have to apply the formula:

(x°F 32) X 5/9 + 273.15

So,

0°F = (0-32) X 5/9 + 273.15 = 255.372K

50°F = (50-32) X 5/9 + 273.15 = 283.15K

According to gas equation,

[tex]\frac{P1}{T1} = \frac{P2}{T2} \\\\\frac{5}{283.15} = \frac{P2}{255.372}\\\\P2 = \frac{(5) (255.372)}{(283.15)}\\ \\P2 = 4.5psi[/tex]

Therefore, the pressure at 0°F would be 4.5psi

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