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user100 [1]
3 years ago
13

Under certain conditions the pressure of a gas varies directly with the temperature. When the pressure is 900 psi, the temperatu

re is 350. What is the pressure when the temperature is 70?
Mathematics
1 answer:
Crank3 years ago
8 0

Answer:

180psi

Step-by-step explanation:

Step one:

given data

P1= 900 psi

T1= 350°C

P2=?

T2=70°C

Required

The final pressure P2

<em>Gay-Lussac's Law: The Pressure Temperature Law. This law states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature. With an increase in temperature, the pressure will go up</em>

Applying the expression

P1/T1= P2/T2

substitute:

900/350= P2/70

2.57=P2/70

cross multiply

P2= 2.57*70

P2=180psi

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