A vector remins unchanged on :

(A): The direction of velocity vector remains unchanged though the coordinate system is changed (R) : The direction of real vector is independent of coordinate system

(A): The direction of velocity vector remains unchanged though the coordinate system is changed (R): The direction of real vector is indepen dent of coordinate system

Describe why the enthalpy of a reaction remains unchanged when a catalyst is used in a reaction.

Quantity that remains unchanged in a transformer is

Quantity that remains unchanged in a transformer is