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JEE Main 2005

Exam: JEE Main
Year: 2005
Subject: Physics
Chapter: Kinetic Theory of Gases

JEE Main 2005 · Physics · Kinetic Theory of Gases

A gaseous mixture consists of 16 ~g of helium and 16 ~g of oxygen....

A gaseous mixture consists of

16 \mathrm{~g}

of helium and

16 \mathrm{~g}

of oxygen. The ratio

\frac{C_p}{C_v}

of the mixture is

Options

A $1.59$
B $1.62$
C $1.4$
D $1.54$

Correct answer

B. $1.62$

Step-by-step solution

c_v=\frac{n_1 c_{v 1}+n_2 c_{v 2}}{n_1+n_2}=\frac{29 R}{18}

c_P=\frac{47 R}{18}, \quad \frac{c_P}{c_v}=1.62

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