Show that the velocity of sound in air increases by `0.6 ms^(-1)` for every `1^@C` rise in temperature.

Assertion (A): The rate of reaction increases generally by 2 to 3 times for every 10^(@)C rise in temperature. Reason (R ): An increase intemperature increases the colliison frequency.

The velocity of sound in air at 324k is 360ms^(-1) . If the pressure is halved and temperature is raised to 400K, what will be the new velocity?

(A): According to Laplace the propagation of sound in air is an adiabatic process. (B): Pressure has no effect on velocity of sound in a gas as long as temperature remains constant. (C): The velocity of sound in air changes by 0.61 m/s when temperature changes by 1^(@)C

[A] : The rate of an enzymic catalysed reaction is increased from 1 to 3 times for every 10^(@) rise in temperature . [R] : There is an optimum temperature for every enzyme beyond which there is no rise and may be denatured after more increases .

If c_(s) is the velocity of sound in air and c is rms velocity , then

At room temperature (27^(@)C) the velocity of sound in air is 330 m/s. the increase in velocity of sound when temperature is increased by 1^(@)C is

With the increase in humidity, the velocity of sound in air

If the rate of reaction increases by two times with every 10^@C rise in temperature, then if we raise the temperature by 40^@C , the new rate of the reaction will be :-

Show that the velocity of sound in a gas, for which gamma=1.41, is 0.68c, where c is the root-mean-square velocity of the molecules.

Velocity of sound in air is 332 ms^-1 . Its velocity in vacuum will be