Which One of These Samples Contains the Smallest Number of Particles

question 12

Essay

Which one of these samples contains the smallest number of particles (atoms or molecules)? Explain your logic.
1.0 L of H₂ at STP (0C and 1 atm)
1.0 L of N₂ at STP
1.0 L of H₂ at 20C and 760 torr
1.0 L of N₂ at 0C and 800 torr
1.0 L of He at STP

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