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ICSE Class 10 Answered

Plz solve 5th
question image
Asked by lovemaan5500 | 30 Jan, 2018, 06:26: AM
answered-by-expert Expert Answer
Given colon
straight P subscript 1 space equals space 380 space mm space of space Hg

straight V subscript 1 space equals space 360 space cm cubed space equals space 360 space ml

straight T subscript 1 space equals space 87 space plus space 273 space equals space 360 space straight k

At space STP
straight P subscript 2 space equals space 760 space mm space of space Hg

straight T subscript 2 space equals space 273 space straight K

straight V subscript 2 space end subscript equals space straight x space ml

We space know comma
fraction numerator straight P subscript 1 straight V subscript 1 over denominator straight T subscript 1 end fraction space equals space fraction numerator straight P subscript 2 straight V subscript 2 space end subscript over denominator straight T subscript 2 end fraction

fraction numerator 380 cross times up diagonal strike 360 over denominator up diagonal strike 360 end fraction equals space fraction numerator 760 cross times open parentheses straight x close parentheses over denominator 273 end fraction

space space space space space space space space space space space space space space straight V subscript 2 space end subscript space equals space fraction numerator 380 cross times 273 over denominator 760 end fraction

space space space space space space space space space space space space space space space space straight V subscript 2 space end subscript equals space 136.5 space ml

therefore space Mass space of space 136.5 space ml space of space gas space equals space 0.546 space straight g

space space space space space space Mass space of space 1000 space ml space of space gas space equals space fraction numerator 1000 cross times 0.546 over denominator 136.5 end fraction

space space space space space space Mass space of space 1000 space ml space of space gas space space equals space 4 space straight g

We space have comma

Vapour space density space equals space fraction numerator Mass space of space 1 space lit space of space gas space over denominator Mass space of space 1 space lit space of space hydrogen end fraction

space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space fraction numerator 4 over denominator 0.09 end fraction

Vapour space density space space equals 44.44 space

Molecular space mass space equals space 2 space cross times Vapour space density space space space space space space space space

space space space space space space space space space space space space space space space space space space space space space space space space space equals space 2 cross times space 44.44 space space space space space

space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 88.88 space space space space space space space

Molecular space mass space of space straight a space gas space is space 88.88
Answered by Varsha | 30 Jan, 2018, 11:33: AM

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