Compressed gas cylinders store many gases at high pressures in laboratories. This cylinder of O2 has a volume of 60.0 L and a pressure of 170 atm. If the cylinder is opened to the atmosphere (at 1.00 atm), what is the final volume of O2 released? Assume constant n and T.

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.