A sample of helium (molar mass ) is initially at and

PHYSICS · Single correct · CBSE · Physics · Thermodynamics · Thermodynamics

Problem

3\,\text{g}

sample of helium (molar mass

4\,\text{g\,mol}^{-1}

) is initially at

27^{\circ}\text{C}

and

1.0\times10^{5}\,\text{Pa}

. It is compressed adiabatically until its pressure becomes

8.0\times10^{5}\,\text{Pa}

. Take

\gamma = \dfrac{5}{3}

for helium. What is the final volume of the gas? (a)

4.2\,\text{L}

(b)

7.2\,\text{L}

(c)

5.4\,\text{L}

(d)

2.3\,\text{L}