Question

I See Periodic Table See Hint The air pressure in the tires of an automobile is adjusted to 33.0 psi at a gas station in San Diego, where the air temperature is 68°F. The air in the tires is at the same temperature as the atmosphere. The automobile is then driven east along a hot desert highway, and the temperature inside the tires reaches 136 °F. What is the pressure in the tires? DSi 1st attempt

Answer 1

Hi Dear Friend, here we have to use ideal gas equation PV = nRT

since tire volume and moles of gas are fixed V, R, and n are constant, so

P1 / P2 = T1 / T2 is our formula now

P1 = 33.0 psi = 2.24552 atm; T1 = 68 ⁰F = 293.15 K

T2 = 136 ⁰F = 330.928 K; P2 = ?

P2 = P1 x (T2 / T1) = 2.24552 atm x (330.928 K / 293.15 K ) = 2.53489832018 atm = 37.25273586541004 psi

Answer: 37.2 psi

I See Periodic Table See Hint The air pressure in the tires of an automobile is adjusted to 33.0 psi at a gas station in San Diego, where the air temperature is 68°F. The air in the tires is at the same temperature as the atmosphere. The automobile is then driven east along a hot desert highway, and the temperature inside the tires reaches 136 °F. What is the pressure in the tires? 37.2 psi 1st attempt

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