What happens if you add gas to a rigid container?

Because the gas is enclosed in a rigid container the volume of the container can not increase. ... The increase in kinetic energy will cause the molecules of the gas to move more rapidly. As the molecules move more rapidly they collide with each other more violently. These collisions will cause an increase in pressure.

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Its the second one nonmetals are moldable and easily shaped