SATHEE: Kinetic Theory - Result Question 23

Kinetic Theory - Result Question 23

23. The value of $γ = (\frac{C_{p}}{C_{v}})$ , for hydrogen, helium and another ideal diatomic gas $X$ (whose molecules are not rigid but have an additional vibrational mode), are respectively equal to,

[NEET Odisha 2019]

(a) $\frac{7}{5}, \frac{5}{3}, \frac{7}{5}$

(b) $\frac{7}{5}, \frac{5}{3}, \frac{9}{7}$

(d) $\frac{5}{3}, \frac{7}{5}, \frac{7}{5}$

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Answer:

Correct Answer: 23. (b)

Solution:

(b) For Hydrogen $f = 5$

For Helium $f = 3$

For gas $X$

$f = 7$ .

$γ = 1 + \frac{2}{f} = 1 + \frac{2}{7} = \frac{9}{7}$

So, $(\frac{7}{5}, \frac{5}{3}, \frac{9}{7})$

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Kinetic Theory - Result Question 23

23. The value of γ=(CpCv), for hydrogen, helium and another ideal diatomic gas X (whose molecules are not rigid but have an additional vibrational mode), are respectively equal to,

Answer:

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23. The value of $γ = (\frac{C_{p}}{C_{v}})$ , for hydrogen, helium and another ideal diatomic gas $X$ (whose molecules are not rigid but have an additional vibrational mode), are respectively equal to,