20 mL of hydrogen measured at 15° C is heated to 35°C. What is the new volume at the same pressure?

Question

20 mL of hydrogen measured at 15° C is heated to 35°C.
What is the new volume at the same pressure?

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Ngọc Khuê 3 months 2021-08-09T12:21:37+00:00 1 Answers 17 views 0

Answers ( )

    0
    2021-08-09T12:22:50+00:00

    V2 = 21.4 ml

    Explanation:

    Note: When dealing with gases, make sure that you change the units from °C to K.

    T1 = 15°C + 273 = 288K

    T2 = 35°C + 273 = 308K

    V1 = 20 ml

    V2 = ?

    We use Charles’s law to solve V2:

    V1/T1 = V2/T2

    or

    V2 = (T2/T1)V1

    = (308K/288K)(20 ml)

    = 21.4 ml

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