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Question: The heat content of the products is more than that of the reactants in an endothermic reaction. Is t...

The heat content of the products is more than that of the reactants in an endothermic reaction. Is this true (1) or false (0)?
A) 1
B) 0

Explanation

Solution

In order to solve this, we need to know the heat involved in endothermic and exothermic reactions. The difference between the heat evolved and heat used up should be considered to get a more reasonable and accurate solution for this.

Complete answer:
We can consider the various forms of reactions that take place for a chemical reaction. The chemical reactions when classified on the heat released or absorbed are the exothermic and the endothermic reactions.
The exothermic reactions are those reactions in which the chemical reaction results in release of an ample amount of heat energy along with the products. This is accompanied by the fact that the heat content in the reactants initial state is released to the surrounding lowering the heat content in the products. If Q is the amount of heat released in a chemical reaction, then we can denote the reaction as –
A + B  C + D + Q \text{A + B }\to \text{ C +}\text{ D + Q }
Where, Q is the amount of heat content less in the products.
The endothermic reactions are those chemical reactions which absorb heat from the surroundings to convert into products. The heat absorbed is held within the products and therefore, the products have a greater heat content than the reactants at initial condition. If Q is the heat absorbed by the reactants, then –
A + B + Q C + D \text{A + B + Q}\to \text{ C +}\text{ D }
Where, Q is the excess heat content in the products formed.
From this, we understand that the heat content in the products after an endothermic reaction is higher than the reactants.

The correct answer is option A.

Note:
The absorption of heat from the surroundings in an endothermic reaction results in the cooling of the container in which the reactants are mixed. This idea should not be confused with the heat content of the products which is greater in the end.