ABCDEFGH is hollow cube made of an insulator, Fig. Face ABCD has positive charge on it. Inside the cube, we have ionized hydrogen. The usual kinetic theory expression for pressure

ABCDEFGH is hollow cube made of an insulator, Fig. Face ABCD has posit

1.	ABCDEFGH is hollow cube made of an insulator, Fig. Face ABCD has positive charge on it. Inside the cube, we have ionized hydrogen. The usual kinetic theory expression for pressure
Answer» will be valid will not be valid since the IONS would experience forces other than due to collisions with the WALLS. will not be valid sincecollisions with walls would not be elastic. will not be valid because isotropy is lost. SOLUTION :As face ABCD has POSITIVE charge on it and the gas consists of ironzed hydrogen, therefore, isotorpy is lost. The usual expression for pressure on the basis of KINETIC theory will not be valid would also experience forces other than the force due to collison with the walls of the container. Choices (b) and (d) are correct.