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Massa molar oksigen adalah 16 kali massa molar hidrogen, jika laju efektif gas hidrogen pada suhu 627° C adalah 1/2 v, berapa laju efektif gas oksigen pada suhu 1327° C?

Massa molar oksigen adalah 16 kali massa molar hidrogen, jika laju efektif gas hidrogen pada suhu 627° C adalah 1/2 v, berapa laju efektif gas oksigen pada suhu 1327° C?

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M. Firdhaus

Master Teacher

Mahasiswa/Alumni Universitas Jember

Jawaban terverifikasi

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Pembahasan

Diketahui: Ditanya: Jawab:

Diketahui:

M r subscript O subscript 2 end subscript equals 16 space M r subscript H subscript 2 end subscript v subscript r m s subscript H subscript 2 end subscript end subscript equals 1 half v T subscript H subscript 2 end subscript equals 900 space straight K T subscript O subscript 2 end subscript equals 1600 space straight K 

Ditanya: begin mathsize 14px style v subscript r m s subscript O subscript 2 end subscript end subscript end style

Jawab:

v subscript r m s subscript O subscript 2 end subscript end subscript over v subscript r m s subscript H subscript 2 end subscript end subscript equals fraction numerator square root of begin display style fraction numerator 3 R T subscript O subscript 2 end subscript over denominator M r subscript O subscript 2 end subscript end fraction end style end root over denominator square root of begin display style fraction numerator 3 R T subscript H subscript 2 end subscript over denominator M r subscript H subscript 2 end subscript end fraction end style end root end fraction fraction numerator v subscript r m s subscript O subscript 2 end subscript end subscript over denominator begin display style 1 half end style v end fraction equals fraction numerator square root of begin display style fraction numerator T subscript O subscript 2 end subscript over denominator M r subscript O subscript 2 end subscript end fraction end style end root over denominator square root of begin display style fraction numerator T subscript H subscript 2 end subscript over denominator M r subscript H subscript 2 end subscript end fraction end style end root end fraction fraction numerator v subscript r m s subscript O subscript 2 end subscript end subscript over denominator begin display style 1 half v end style end fraction equals square root of fraction numerator T subscript O subscript 2 end subscript over denominator M r subscript O subscript 2 end subscript end fraction cross times fraction numerator M r subscript H subscript 2 end subscript over denominator T subscript H subscript 2 end subscript end fraction end root fraction numerator v subscript r m s subscript O subscript 2 end subscript end subscript over denominator begin display style 1 half v end style end fraction equals square root of fraction numerator 1600 over denominator 16 space M r subscript H subscript 2 end subscript end fraction cross times fraction numerator M r subscript H subscript 2 end subscript over denominator 900 end fraction end root fraction numerator v subscript r m s subscript O subscript 2 end subscript end subscript over denominator begin display style 1 half v end style end fraction equals 40 over 4 cross times 1 over 30 fraction numerator v subscript r m s subscript O subscript 2 end subscript end subscript over denominator begin display style 1 half v end style end fraction equals 1 third v subscript r m s subscript O subscript 2 end subscript end subscript equals 1 third cross times 1 half v v subscript r m s subscript O subscript 2 end subscript end subscript equals 1 over 6 v 

 

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