A model for a potential chemical reaction is shown here. Evaluate the model and the reaction shown. Which statements are correct
about this model. Select ALL that apply.
A) The law of conservation of matter is followed in this model.
B) Conversation of matter is not observed because of some of the atoms are converted into energy in the reaction.
C) Conservation of matter is observed because there are the same number of each atom on both sides of the reaction.
D) Conservation of matter is not observed because there are different numbers of molecules in the reactants and the products. 
A) The law of conservation of matter is followed in this model.
B) Conversation of matter is not observed because of some of the atoms are converted into energy in the reaction.
C) Conservation of matter is observed because there are the same number of each atom on both sides of the reaction.
D) Conservation of matter is not observed because there are different numbers of molecules in the reactants and the products.
1 answer:
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Answer : The final equilibrium temperature of the water and iron is, 537.12 K
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
where,
= specific heat of iron = 560 J/(kg.K)
= specific heat of water = 4186 J/(kg.K)
= mass of iron = 825 g
= mass of water = 40 g
= final temperature of water and iron = ?
= initial temperature of iron =
= initial temperature of water =
Now put all the given values in the above formula, we get:
Therefore, the final equilibrium temperature of the water and iron is, 537.12 K