The second law of thermodynamics state ….

At a given temperature and pressure, a certain reaction has

At 298 K the

Which definition (of the choices given) is the best definition of entropy?

Consider the Voltaic Cell shown below:  The battery consists of a Silver and Nickel electrode connected externally by a wire.  The red arrow shows the direction that electrons will flow when the electrodes are connected.  Answer the following questions… Is the Silver electrode the anode or the cathode? Which electrode will gain mass as the battery operates? What will happen to the as the battery operates? Which electrode would be marked with a (+) symbol?

Condense the following into a single logarithm 3-2log2x+12log2y{“version”:”1.1″,”math”:”3-2log2x+12log2y”}

Explain how to determine whether an exponential function of the form y=a(b)x{“version”:”1.1″,”math”:”y=a(b)x”}, (where a>0), grows or decays, by looking at “b” and “x”. 

Find the value of x in the logarithmic equation. Just write the number, not x= logx36=2{“version”:”1.1″,”math”:”logx36=2″}

Find the value of x in the logarithmic equation.  log12x=3{“version”:”1.1″,”math”:”log12x=3″}

The function A(t)=aebt{“version”:”1.1″,”math”:”A(t)=aebt”} models the concentration of a drug in milligrams (mg), where a = {a} and b = {b}, and t is the amount of time. Find the concentration after 7 hours. Round your answer to 2 decimal places. (Just write the number with no mg units)