In a nuclear fusion reaction, if the energy is released then

Options

A. `BE_("products")=BE_("reactants")`
B. `BE_("reactants") gt BE_("products")`
C. `BE_("products") gt BE_("reactants")`
D. Mass of product `gt` mass of reactant

Answer

To solve the question regarding nuclear fusion reactions and the energy released, we can break it down into the following steps:

### Step 1: Understand Nuclear Fusion
Nuclear fusion is a process where two or more light atomic nuclei combine to form a heavier nucleus. This process releases a significant amount of energy.

### Step 2: Energy Release in Fusion
In a fusion reaction, energy is released when the products have a higher binding energy than the reactants. The binding energy is the energy required to separate a nucleus into its constituent protons and neutrons.

### Step 3: Binding Energy Comparison
When energy is released in a fusion reaction, it implies that the binding energy of the products is greater than that of the reactants. This can be expressed mathematically as:
\[ \text{Binding Energy of Products} > \text{Binding Energy of Reactants} \]

### Step 4: Mass-Energy Relation
According to Einstein's mass-energy equivalence principle (E=mc²), when energy is released, there is a corresponding decrease in mass. Therefore, the mass of the products is less than the mass of the reactants:
\[ \text{Mass of Products} < \text{Mass of Reactants} \]

### Step 5: Conclusion
From the above analysis, we can conclude that in a nuclear fusion reaction where energy is released:
- The binding energy of the products is greater than that of the reactants.
- The mass of the products is less than that of the reactants.

### Answer
The correct option is:
**Binding energy of products is greater than binding energy of reactants.**

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