question_answer

If the pressure of a gas at constant temperature is increased four times, how the velocity of sound in the gas will be affected?

Answer:

                \[\upsilon =\sqrt{\frac{\gamma P}{\rho }}\], any increase in \['P'\] produces corresponding increase in \['\rho '\] so that\[\frac{P}{\rho }=\]constant. Hence the velocity of sound in a gas is independent of pressure.