Answer to Question #283143 in Physics for Kimgcash

Question #283143

2. The density of hydrogen gas at 0°C and IUPAC standard pressure (100 kPa) is 9.00 g/m3.




a) If 1g of hydrogen gas is heated to 200°C in frictionless cylinder, find the volume it




occupies.




b) State what effect friction would have on your answer to (a).

1
Expert's answer
2021-12-30T11:54:19-0500

a) The initial volume is


V1=m/ρ.V_1=m/\rho.


Apply the combined gas law (keep in mind the pressure did not change):


V1T2=V2T1, V2=V1T2/T1=mT2ρT1=0.192 m3.V_1T_2=V_2T_1,\\\space\\ V_2=V_1T_2/T_1=\dfrac{mT_2}{\rho T_1}=0.192\text{ m}^3.


b) The pressure would increase.


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