Mole of an ideal gas is contained in a cubical volume V, ABCDEFGH at 300 K (figure). One face of the cube (EFGH) is made up of a material which totally absorbs any gas molecule incident on it .At any given time.

Options

A. the pressure on EFGH would be zero
B. the pressure on all the faces will the equal
C. the pressure of EFGH would be double the pressrue on ABCD
D. the pressure on EFGH would be halt that on ABCD

Explanation

In an ideal gas, when a molecule collide elastically with a wall ,the momentum transterred to each molecule will be twice the magnitude of its normal momentum. For the face EFGH it transfers only half of that.