Pressure is defined as momentum per unit volume. Is it true?

KE per unit volume is:

KE per unit volume is:

Name Mass per unit volume

Momentum per unit volume has the dimensions :

Define momentum ? Give its unit .

Define momentum ? Give its unit .

strain energy per unit volume is

Assertion : The coefficient of volume expansion has dimension K^(-1) . Reason : The coefficient of volume expansion is defined as the change in volume per unit volume per unit change in temperature.

Show dimensionally that the pressure is given by (i) energy per unit volume (ii) force per unit area.