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Grade 12th passIIT JEE Entrance Exam

Cp and CV are specific heats at constant pressure and constant volume, respectively. It is observed that
Cp -Cv = a for hydrogen gas Cp – CV for nitrogen gas. The correct relation between a and b is
(a) a = b
(b) a = 14b
(c) a= 28b
(d) a = src=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABwAAAAiCAIAAADDHy4eAAAA4ElEQVRIieWW0RGEIAxEt64UlHpSTZrZYu4+hJFDRCH44Vz+GMYHm4Ss+DwQeDnUFVBfBqUJtlgJJRN6ITSh/xt6s/qu7ZqeVx8AIMZr7uH4YPPTpHFwEOraEhODZvFVckNQmkAtd4prxoagrmUtaZJWGIojs8hoAZ2/Z135FfJp8tOiOzMArcSXy2no9vTSTfd0hqA0EWPuz+qpPuxRp5Oprsg9aNeXaCIyOF3x6foSTdSHR/Yuv/GpK9QnfKADTci8Q9OriX0JrSzglg0coee+NCW/70t5dwD79r++YHwBs0XxLeSWurgAAAAASUVORK5CYIIA

Profile image of Satendra Kumar
8 Years agoGrade 12th pass
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1 Answer

Profile image of Arun
8 Years ago
Cp - Cv = R
Where Cp and Cv are molar specific heat capacities.
As per the question
a = R/2
b = R/28
Hence
a = 14 b
Hence option B is correct

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