The position of image and it's nature, formed due to spherical mirror depends on the distance of the object from the mirror. To locate the position of the image, we draw two rays from the project, mules theth insert and trace the​

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.