Determine how many atmospheres or pressure are equal to 65.78

In an oxidation-reduction reaction, oxidation is what happens when a reactant

How hot is the suns corona? (integrated science)

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.