3. If a certain quantity of gas has a volume of 30 cm3 at a pressure of 1 × 105 Pa, what is its volume when the pressure is a. 2 × 105

Question

3. If a certain quantity of gas has a volume of 30 cm3 at a pressure of 1 × 105 Pa, what is its volume when the pressure is
a. 2 × 105 Pa,
b. 5 × 105 Pa?
Assume the temperature remains constant.
Plz help me ASAP!!!

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Helga 1 year 2021-07-26T14:34:42+00:00 1 Answers 265 views 0

Answers ( )

  1. minhkhue
    0
    2021-07-26T14:35:49+00:00
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    We know that:

                                 [tex]P_{1}V_{1}= P_{2}V_{2}[/tex]               …….(1)

    Given at [tex]P_{1}=30cm^3[/tex] , [tex]V_{1}=10^5Pa[/tex]

    a)

    When [tex]P_{2}=2*10^5Pa[/tex] , [tex]V_2=[/tex]?

    Using equation (1)

                                        [tex]30*10^5=2*10^5*V_2[/tex]

                                         [tex]V_2=30/2=15cm^3[/tex]

    b)

    When [tex]P_2=5*10^5Pa[/tex], [tex]V_2=?[/tex]

    using equation (1)

                                         [tex]30*10^5=5*10^5*V_2[/tex]

                                        [tex]V_2=30/5=6cm^3[/tex]

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