Question 2 (1 point) An engineer is designing a device to reduce the chance of collisions between cars.
They have selected a solution and built a prototype. What is the next step?
test the prototype on model cars in a lab
compare the performance of the device to that of similar devices
research existing data on accidents involving cars
communicate the results by telling everyone about the prototype
Soraya Rostar S4645700993
joined session
Question 3 (1 point)

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.