The fusion on water is an enxothermic change but at this temp, the temp-entropy product is outweighed by the change in enthalpy.
 
        
                    
             
        
        
        
Answer: 
6.66 mol 
Explanation:
(atm x L) ÷  (0.0821 x K)
(0.875 x 250) ÷  (0.0821 x 400)
=6.66108
 
        
             
        
        
        
Option “A” is the crest of the wave because it’s the maximum value of upward displacement within a cycle.
        
             
        
        
        
Answer is: carbon dioxide (CO₂) can affect the end point of the titration.
Carbon dioxide, or carbon(IV) oxide, reacts with water and form carbonic acid, which can affect the end point of the titration, because more base is needed for neutralization of partially neutralized stomach acid.
Balanced chemical reaction of carbon dioxide and water: CO₂ + H₂O → H₂CO₃.