Which best describes thermal energy? A. It is the difference between internal energies of two or more substances.
B. It is the sum of internal energies of two or more substances.
C. It is the portion of internal energy that can be transferred from one substance to another.
D. It is the portion of potential energy that can be transferred from one substance to another.

Select the correct answer. you have a nightlight plugged into an outlet in the hallway, which uses 3.5 watts when plugged in. if the house circuit provides 120.0 volts, what is the current through this bulb?

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process

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.