Sodium acetate spontaneously crystallizes out of a supersaturated solution upon standing or upon the addition of a seed crystal. Which of the following is true for the thermodynamic quantities of this system for thisprocess?(a)ΔS < 0J/K, ΔH < 0 J(b)ΔS < 0J/K, ΔH > 0 J(c)ΔS > 0J/K, ΔH < 0J(d)ΔS > 0J/K, ΔH > 0J

Option (c) is correct.

Explanation:

According to 2nd law of thermodynamics, every spontaneous process is associated with increase in entropy ().

As sodium acetate crystallizes out spontaneously therefore it is associated with .

During crystallization, bond formation takes place which results evolution of heat. In other words, crystallization phenomenon is exothermic ().

So, the given crystallization process renders the following thermodynamic quantities- J/K and J

Option (c) is correct.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )