Can you guy pleas answer this questions
4. would you expect a substance to be a solid, liquid, or gas at absolute
zero? explain your answer.
5. describe what happens, at the molecular level, during melting.
6. describe what happens, at the molecular level, when a substance boils.
7. what is the most common phase of matter in the universe?
8. what is plasma? where can you find plasma?

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc

Four friends, a, b, c, and d are standing varying distances away from a speaker which is producing sound waves.