The pressure of a gas sample at 25.0 C is decreased from 3.40 atm to 2.60 atm by cooling at a constant volume. What is the temperature (in C) of the gas at 2.60 atm ?

Alpha particles have positive charge, beta particles have negative charge, and answer 4 just doesn’t make sense. thus, you are left with only one possible answer.

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.