Which answer(s) is (are) true when comparing 1.0 mol at STP and 0.50 mol H 2 (g)

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Which answer(s) is (are) true when comparing 1.0 mol at STP and 0.50 mol H2(g) He(g) at STP? The two gases have equal 

(a) Average molecular kinetic energies; 

(b) Root-mean-square speeds; 

(c) Masses; 

(d) Volumes; 

(e) Densities;

(f) Effusion rates through the same orifice.

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Related Book For  answer-question

General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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