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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: nuclear chem.....
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[Post New]22 Jul 2008 11:00:09 IST
    Subject: nuclear chem.....
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true_iitian (12)

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can someone tell me the meaning of gram atoms plzz....coz i have this question...


10 gram atoms of an alfa actice radioisotope are disintegrating in a sealed container. In 1 hr. He gas collected at STP is  11.2 cm3. Calculate the 1/2  life of the isotope.


i think ans=13889.78 hrs
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[Post New]22 Jul 2008 11:34:05 IST
    Subject: nuclear chem.....
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v.sabarish (177)

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gram atom ~ 1 mole of atoms
gram moleclule ~ 1 mole of molecules
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