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17 October, 04:11

A spray can is used until it is empty except for the propellant gas, which has a pressure of 1344 torr at 23°C. If the can is thrown into a fire (T = 475°C), what will be the pressure in the hot can?

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  1. 17 October, 04:37
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    The new pressure in the hot can is 3396.32 torr

    Explanation:

    The equation derived from Gay-Lussac's gas law is used to calculate the new pressure in the gas can as it relates pressure and temperature. It states that the pressure of a fixed mass of gas is directly proportional to its temperature in Kelvin.

    Mathematically, P1/T1 = P2/T2, where P1 and P2 are the initial and final pressures, and T1 and T2 are the initial and final temperatures respectively.

    From the given values, P1 = 1344torr, T1 = 23°C = (23+273) K = 296K, P2 = ?, T2 = 475°C = (475 + 273) K = 748K

    Making P2 subject of the formula, P2 = P1T2/T1

    P2 = 1344*748/296

    P2 = 3396.32 torr
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