Is pressure in a liquid, scalar or vector.

The temperature at which the vapour pressure of a liquid becomes equal to the external pressure is its

The temperature at which the vapour pressure of a liquid becomes equal to the external pressure is its:

The vapour pressure of a liquid is a constant at constant temperature? Why?

Classify 20 m/s towards north measures as scalar and vector.

Classify 2 metres north-west measures as scalar and vector.

Excess pressure inside a liquid drop is 60N/m^2 ?. What will be the excess pressure inside a liquid bubble of the same radius formed by the same liquid?