The half-life for the second-order decomposition of hi is 15.4 s when the initial concentration of hi is 0.67 m. What is the rate constant for this reaction?

Explanation:

Half life of second order decomposition

T1/2= 1/ k|A|₀

where k is the rate constant and |A|₀ is the initial concentration.

Therefore,

k= 1/(T1/2)|A|₀ = 9.7x10⁻² M⁻¹s⁻¹

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.