Q.

The Ne atom has 10 times the mass of H2. which of the following statements is true?I. At 25oC they both have the same kinetic energy.II. Ten moles of H2 would have the same volume as 1 mole of Ne at same temp. and pressure.III. One mole of Ne exerts the same pressure as one mole of H2 at STP.IV A H2 molecule travels 10 times faster than Ne atom at same temperature.V At STP one liter of Ne has 10 times the density of 1 liter of H2.

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a

II, IV, V

b

I, III, V

c

I, II, III

d

I, II

answer is B.

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Detailed Solution

K,E is temperature dependentsame moles would have same volume at same P and TPV=nRTd=PMwRT
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The Ne atom has 10 times the mass of H2. which of the following statements is true?I. At 25oC they both have the same kinetic energy.II. Ten moles of H2 would have the same volume as 1 mole of Ne at same temp. and pressure.III. One mole of Ne exerts the same pressure as one mole of H2 at STP.IV A H2 molecule travels 10 times faster than Ne atom at same temperature.V At STP one liter of Ne has 10 times the density of 1 liter of H2.