a sample consisting of 2.00 mol He is expanded isothermally at 0 C from 5.0 dm^3 to 20 dm^3 reversibly, against a constant external pressure equal to the final pressure of the gas, and freely. calculate q, w, and U

If two objects at different te,peraure are in contact with each other what happens to their temperature

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?