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7 August, 21:20

A hot air balloon starts with its temperature at 68.7°C and a pressure of 0.987 ATM and volume of 564L at what temperature in degrees Celsius while its pressure be 0.852 ATM and its volume be 625L

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  1. 7 August, 23:32
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    54.7°C is the new temperature

    Explanation:

    We combine the Ideal Gases Law equation to solve this.

    P. V = n. R. T

    As moles the balloon does not change and R is a constant, we can think this relation between the two situations:

    P₁. V₁ / T₁ = P₂. V₂ / T₂

    T° is absolute temperature (T°C + 273)

    68.7°C + 273 = 341.7K

    (0.987 atm. 564L) / 341.7K = (0.852 atm. 625L) / T₂

    1.63 atm. L/K = 532.5 atm. L / T₂

    T₂ = 532.5 atm. L / 1.63 K/atm. L → 326.7K

    T° in C = T°K - 273 → 326.7K + 273 = 54.7°C
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