Science Pre engineering result 2025 Karachi Board  

Postulates of Kinetic Theory of Gases: The basic postulates of Kinetic Theory of gases are as under 1. A gas contains a very large number of particles called molecules. Depending on the gases each molecule consists of an atom or a group of atoms. 2. A finite volume of a gas consists of very large number of molecules. This assumption is justified by experiments. At standard conditions there are 3 x 10^25 molecules per cubic meter. 3. The size of the molecules is much smaller than separation between molecules; it is about 3 x 10^-10m. 4. The molecules move in all directions with various speeds collide elastically with one another and with the walls of the container. 5. The molecules exert no forces on one another except during collisions. In the absence of the external forces, they move freely in straight lines. 6. Laws of mechanics/Newtonian Laws are assumed to be applicable to the motion of molecules.

 How to drive formula for time period of simple pendulum using dimensions 

Test 60 Some Rules of this Quiz 1. You only get 60 seconds for each question. 2. Once you have selected your option, it cannot be undone. 3. You can't select any option once time goes off. 4. You can not skip the quiz while playing. 5. You will get points based on your correct answers. Prepared By Sir Ishtiaq Ahmed M.sc Physics Contact: 03418859992 Start Previous 1 of 17 Questions Next

Test 60 Some Rules of this Quiz 1. You only get 60 seconds for each question. 2. Once you have selected your option, it cannot be undone. 3. You can't select any option once time goes off. 4. You can not skip the quiz while playing. 5. You will get points based on your correct answers. Prepared By Sir Ishtiaq Ahmed M.sc Physics Contact: 03418859992 Start Previous 1 of 17 Questions Next

Test 60 Some Rules of this Quiz 1. You only get 60 seconds for each question. 2. Once you have selected your option, it cannot be undone. 3. You can't select any option once time goes off. 4. You can not skip the quiz while playing. 5. You will get points based on your correct answers. Prepared By Sir Ishtiaq Ahmed M.sc Physics Contact: 03418859992 Start Previous 1 of 17 Questions Next

Test 60 Some Rules of this Quiz 1. You only get 60 seconds for each question. 2. Once you have selected your option, it cannot be undone. 3. You can't select any option once time goes off. 4. You can not skip the quiz while playing. 5. You will get points based on your correct answers. Prepared By Sir Ishtiaq Ahmed M.sc Physics Contact: 03418859992 Start Previous 1 of 17 Questions Next

Test 60 Some Rules of this Quiz 1. You only get 60 seconds for each question. 2. Once you have selected your option, it cannot be undone. 3. You can't select any option once time goes off. 4. You can not skip the quiz while playing. 5. You will get points based on your correct answers. Prepared By Sir Ishtiaq Ahmed M.sc Physics Contact: 03418859992 Start Previous 1 of 17 Questions Next

Test 60 Some Rules of this Quiz 1. You only get 60 seconds for each question. 2. Once you have selected your option, it cannot be undone. 3. You can't select any option once time goes off. 4. You can not skip the quiz while playing. 5. You will get points based on your correct answers. Prepared By Sir Ishtiaq Ahmed M.sc Physics Contact: 03418859992 Start Previous 1 of 17 Questions Next