Answer: It is an exothermic process because heat energy is absorbed by the water as the NaOH(s) dissolves in it.
Explanation:
Endothermic reaction : It is a type of chemical reaction where the energy is absorbed from the surrounding. In the endothermic reaction, the reactant are less than the energy of product. In endothermic reaction, the change in enthalpy is, positive
Exothermic reaction : It is a type of chemical reaction where the energy is released into the surrounding. In the exothermic reaction, the energy of reactant are more than the energy of product. In exothermic reaction, the change in enthalpy is, negative.
Thus as energy is absorbed by water, which has been released by NaOH, the process is exothermic.
 
        
             
        
        
        
Ever heard of this thing called... RESEARCH!? You might want to try it buddy. Sayounara.
        
             
        
        
        
The question is incomplete, here is the complete question:
Carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases, phosgene and chlorine.
 at 1,000 K
 at 1,000 K
Calculate Kc for the reaction 
<u>Answer:</u> The value of  for the final reaction is
 for the final reaction is 
<u>Explanation:</u>
The given chemical equations follows:

We need to calculate the equilibrium constant for the equation, which is:

As, the final reaction is the twice of the initial equation. So, the equilibrium constant for the final reaction will be the square of the initial equilibrium constant.
The value of equilibrium constant for net reaction is:

We are given:

Putting values in above equation, we get:

Hence, the value of  for the final reaction is
 for the final reaction is 
 
        
             
        
        
        
The answer is C: How long does it take distilled water to evaporate from a 5” diameter container?
        
                    
             
        
        
        
Answer:
volume
v = 4/3π r^3
Explanation:
 it isn't specific enough but that is the equation of how to get any volume 
volume equals four thirds times pi times radios to the power of three