CBSE Class 11-science Answered
Two vessels of the same size are at the same temperature. One of them holds 1 kg of H2 gas and other holds 1 kg of N2 gas.
(i) Which of the vessels contains more molecules?
(ii) Which of the vessels is under greater pressure and why?
(iii) In which vessel is the average molecular speed greater? How many times is it greater?
Asked by Topperlearning User | 07 May, 2015, 05:11: PM
Expert Answer
(i) Hydrogen. As 2 g of hydrogen contains N molecules, 1 kg of hydrogen contains N /2 x 1000 = 500 N molecules, where N = 6.023 x 1023. In case of N2, 28 g of nitrogen contains N molecules. Therefore, 1 kg of nitrogen contains N/28 x 1000 = 36N.
(ii) Hydrogen
As
Answered by | 07 May, 2015, 07:11: PM
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