10.0 gram-atom of an alpha-active radioisotope is disintegrating in a – InterviewSolution

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1.	10.0 gram-atom of an alpha-active radioisotope is disintegrating in a sealed container. In one hour, the He gas collected at STP is 11.2 litres. Calculate the half-life of the isotope supposing each nucleus yielding one He atom.
Answer» ANSWER :13.49h

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