Explanation:
According to the heat relationship,
Heat given by steam = heat taken by water
Hence, 
= 
where, 
= specific heat
Value of 
at 250^{o}C and 12.5 atm is 2.326 
.
And, at 200^{o}C and 12.5 atm is 2.743 .
Therefore, average = 
= 2.5345 kJ/Kg^{o}C
As the given data is as follows.
= 400 kg/hr, 
= 
= 
, 
= 500 kg/hr
= 4.186 
Hence, putting the given values into the above formula as follows.
=
= 
As we know that, 
Thus, we can conclude that the new temperature of water is 
.
The answer is D. The energy can not be created or destroyed. It can only be transformed from one form to another. This is called the law of conservation of energy. So the word "make" and "create" is not correct.
Burying all of the methanol results in a hotter temperature so because flaming is attempting to ignite the dried salts.
That's because as the methanol is eaten to the finish, the flame approaches the dry salts and attempts to ignite them.
It is therefore critical to extinguish the flame even before methanol is entirely consumed.
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