Analysis of Errors in JEE Main Answer Key and Discussion on Dipole Moment Interaction Energy
The discussion on the JEE Main 2 answer key has been quite intense, particularly the response to question number 36 involving dipole moment interaction energy. Some test takers have raised concerns, especially around the concept of dipole moment interaction energy being proportional to 1/r3. In this article, we will delve into the technicalities and why the JEE Main answer key is considered correct.
Technical Explanation of Dipole Moment Interaction Energy
Dipole moment is a measure of the separation of positive and negative charges in a molecule or atom. The interaction energy between two dipoles is influenced by their orientation and distance from each other. The relationship between the interaction energy and the distance between the dipoles is significant, and it is often described mathematically.
For two dipoles, the dipole-dipole interaction energy is inversely proportional to the cube of the distance between them. Mathematically, this can be expressed as:
Interaction Energy (E) ∝ 1/r3
Where r is the distance between the centers of the two dipoles. This relationship is derived from quantum mechanics and is well-established in chemistry and physics.
Common Misconceptions and Clarifications
There have been several instances where test takers have confused the relationship between energy and distance, leading to misunderstandings about the correct answer key. One of the most common misconceptions is that the interaction energy is directly proportional to 1/r instead of the cube of the distance.
It is important to note that the initial confusion arises from incorrect calculations or an incomplete understanding of the principles behind dipole moment interaction energy. Many students may have easily overlooked the cubed relationship due to a lack of thorough review or practice in this area.
However, it is reassuring to know that the JEE Main answer key correctly reflects the established scientific principles. This ensures that the examination remains a fair and reliable assessment of the candidates' knowledge and understanding.
Impact on College Admission
For test takers hoping to gain admission to prestigious colleges, the accuracy of the answer key is crucial. While some have raised valid points and challenges, it is important to maintain a level of confidence in the official solution.
Many test takers have shared that they feel reassured by the support from their peers and educational institutions. For instance, some private coaching institutes have offered guidance and support to help students better understand the concepts tested in the JEE Main. These resources and the active community involved in these institutes have played a significant role in clarifying doubts and reinforcing the correct answers.
Conclusion
In conclusion, the JEE Main 2 answer key for question 36 regarding dipole moment interaction energy is indeed correct. The relationship 1/r3 accurately reflects the interaction energy between dipoles, as derived from fundamental principles of quantum mechanics and chemistry. While there may be temporary frustrations and doubts, it is important to trust the scientific procedures and the rigorous review conducted by the examination authorities.
For test takers seeking guidance and support, there are numerous resources available, including coaching institutes and online forums, which can aid in further understanding and preparation for future examinations.