Which of the following statements is correct regarding one mole of helium gas and one mole of neon gas ,both are at STP.

Their pressure is the same

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Their temperature is the same

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Their volume is the same

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Their number of particles is the same

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The pressure, temperature, volume and number of particles is the same

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Solution

The correct option is E The pressure, temperature, volume and number of particles is the same
STP conditions : $T = 273 K$ $P = 1 a t m$
For 1 mole of He gas : Number of He particles $N_{H e} = 6.023 \times 10^{23}$ particles
Volume of He gas $V_{H e} = 22.4$ Litres

For 1 mole of Ne gas : Number of Ne particles $N_{N e} = 6.023 \times 10^{23}$ particles
Volume of Ne gas $V_{N e} = 22.4$ Litres
Thus option E is correct.

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