N4.41 mol of hydrogen gas is initially at t 349.0 k temperature and pi 2.29x105 pa pressure. the gas is then reversibly and isothermally compressed until its pressure reaches pf = 9.84x105 pa. what is the volume of the gas at the end of the compression process? tries 0/20 submit answer how much work did the external force perform? tries 0/20 submit answer how much heat did the gas emit? tries 0/20 submit answer how much entropy did the gas emit? tries 0/20 submit answer what would be the temperature of the gas, if the gas was allowed to adiabatically expand back to its original pressure?

Glass is transparent to visibile light under normal conditions; however, at extremely high intensities, glass will absorb most of the light incident upon it. this works through a process known as multiphoton absorption. in this process, several photons are absorbed at the same time. if very intense light whose photons carry 2ev of energy is shined onto a material with a band gap of 4ev, that light can be absorbed through two-photon absorption, because two photons have the right amount of energy to bridge the band gap. what is the minimum number of photons of 800-nm light that are needed to equal or exceed the band gap of fused silica glass

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

As a pendulum bob swings back and forth several times, the maximum height it reaches becomes less and less. this is because more and more of the pendulum bob's energy is being transformed into a. heat energy b. kinetic energy c. potential energy d. kinetic energy and potential energy