Pls help!! 20 points A particular reaction has an activation energy, Ea, of 189 kJ/mol. If the rate constant for the reaction is
0.00205 s-1 at 457 °C, at what temperature (°C) would the rate constant be 0.200 s-1?

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms

If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?

What happens to the glucose molecule during the process of cellular respiration? (5 points) select one: a. it gets broken down. b. it forms oxygen. c. it builds muscles. d. it uses up energy.