Explanation:
how to understand the difference between acid and base
200 is the answer let me know if you need anything
The nuclear fusion<span> in our </span>sun<span> combines two </span>hydrogen atoms<span> (the smallest and lightest </span>atoms<span>) together to </span>form<span> one </span>helium atom<span> (a slightly larger </span>atom). <span>During the process some of the </span>mass<span> is converted into energy.</span>
Answer : The enthalpy of this reaction is, 0.975 kJ/mol
Explanation :
First we have to calculate the heat produced.

where,
q = heat produced = ?
m = mass of solution = 126 g
c = specific heat capacity of water = 
= initial temperature = 
= final temperature = 
Now put all the given values in the above formula, we get:


Now we have to calculate the enthalpy of this reaction.

where,
= enthalpy change = ?
q = heat released = 1.95 kJ
n = moles of compound = 2.00 mol
Now put all the given values in the above formula, we get:


Thus, the enthalpy of this reaction is, 0.975 kJ/mol