The table below shows the volume and 44 temperature of four different gas samples at 100. kPa.

January 2020 NY Regents Chemistry Exam

41 The table below shows the volume and 44 temperature of four different gas samples at 100. kPa.

Which two gas samples contain equal numbers of atoms? (1) helium and neon

(2) helium and argon

(3) neon and argon

(4) neon and krypton

Solution: The two gases with the same volume, pressure and temperature will have the number of atoms.

Answer: 2

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