Saved Bookmarks
| 1. |
An ideal gas at room temperature has 105 molecules per cubic centimetre. Its pressure is of the order of (a) 10-15 atm (b) 10-10 atm (c) 10-5 atm (d) 1 atm |
|
Answer» Correct Answer is (a) 10-15 atm p = nkT = (105 x 106 m-3) (1.38 x 10-23 J K-1) (300 K) ≃ 10-10 N m-2 = 10-10 pa ≃ 10-15 atm. |
|