The initial pressure in a cylinder containing 1 mole of an ideal gas is 1 atm, and it has an initial specific volume of 20 liters/mole. how much work, where work (w)-pdv is done on the cylinder to decrease the total volume to % its original volume. assume the process occurs at a constant temperature of 300k. (hint: pv nrt, re 0.08206 lit atnm a) 10 lit atm b)-10 lit-atm c) 17.1 lit-atm d) -17.1 lit atm e) 0.693 lit-atm

most likely he is cheating on you

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

level 4 to level 2 : ))