Question

What is meant by 1 pascal?
How temperature effects the velocity of a sound?

Answer 1

On newton per square metre is known as 1 pascal
As we know that sound is produced by vibrations and it needs medium to travel.Diffusion in very fast in high temperature so because of high rate of the diffusion in the air so the sound will travel faster
So by this we can say that the temperature can also affect the velocity of the sound

Answer 2

1pascal=1newton/metrecube