Ahawk maintains a constant internal temperature in both the heat of the day and the cool of night. this is called

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

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.

With carbon dioxide what phase change take place when the temperature decreases from -40c to -80c at 2 atm