Consider an ideal gas that occupies 1L in a cylinder with movable piston under the pressure of 10atm. if the external pressure of 10atm compresses 9atm due to nine pieces of small removable blocks of equal weights and 1atm due to atmospheric pressure, calculate the expansion workdone by the gas when: I. the nine blocks are removed from the piston at once
II. eight blocks are removed from the piston at once
III. eight blocks are removed from the piston in two batches, i. e. four blocks at a time​

The small bags of silica gel you often see in a new shoe box are placed there to control humidity. despite its name, silica gel is a solid. it is a chemically inert, highly porous, amorphous form of sio2. because water vapor readily adsorbs onto the surface of silica gel, it acts as a desiccant. despite not knowing mechanistic details of the adsorption of water onto silica gel, from the information provided you should be able to make an educated guess about the thermodynamic characteristics of the process. predict the signs for δg, δh, and δs for the adsorption of water.