A hollow metal sphere having an inside diameter of 150-mm is weighed f – McqOptions

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1.	A hollow metal sphere having an inside diameter of 150-mm is weighed first when evacuated and then after being filled to 875 kPa with an unknown gas. If the difference in mass is 0.0025 kg, and the temperature is 25 C, find the gas.
A.	helium
B.	argon
C.	hydrogen
D.	nitrogen
Answer» B. argon

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