Binding energy per nucleon versus mass number curve for nuclei is shown in the figure. W , X , Y and Z are four nuclei indicated on the curve. The process that would release energy is

Question

Binding energy per nucleon versus mass number curve for nuclei is shown in the figure. W , X , Y and Z are four nuclei indicated on the curve. The process that would release energy is <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/p-tuph3ofceb2u.png" /> (A) Y arrow 2 Z (B) W arrow X + Z (C) W arrow 2 Y (D) X arrow Y + Z

Tardigrade Admin · Accepted Answer

Energy is released in a process when total binding energy of the nucleus (= binding energy per nucleon

x

number of nucleons) is increased or we can say when total binding energy of products is more than the reactants.
In the reaction

W \to 2 Y

The binding energy of reactants

= 120 \times 7.5 = 900 M e V

and binding energy of products

= 2 (60 \times 8.5) = 1020 M e V

and we can see

1020 M e V > 900 M e V

.

Q. Binding energy per nucleon versus mass number curve for nuclei is shown in the figure. $W$ , $X$ , $Y$ and $Z$ are four nuclei indicated on the curve. The process that would release energy is

$Y \to 2 Z$

$W \to X + Z$

$W \to 2 Y$

$X \to Y + Z$

Q. Binding energy per nucleon versus mass number curve for nuclei is shown in the figure. W , X , Y and Z are four nuclei indicated on the curve. The process that would release energy is

Y→2Z

W→X+Z

W→2Y

X→Y+Z

Q. Binding energy per nucleon versus mass number curve for nuclei is shown in the figure. $W$ , $X$ , $Y$ and $Z$ are four nuclei indicated on the curve. The process that would release energy is

$Y \to 2 Z$

$W \to X + Z$

$W \to 2 Y$

$X \to Y + Z$