The speed of sound in a container of gas at 20.0°c is v. if the temperature of the gas is increased to 80.0°c, the new speed will be?

Answer : The new speed will be, 1.098v

Explanation :

The formula used for speed of sound in a container of gas is:

where,

c = speed of sound

R = gas constant

= adiabatic constant

T = absolute temperature

M = molecular mass of gas

As,

or, we can say that

           .............(1)

Given:

=

=

= v

Now put all the given values in the above formula 1, we get:

Thus, the new speed will be, 1.098v

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.