Discussion
Assertion (A): A reference state must be chosen before enthalpies can be tabulated.
Reason (R): Only enthalpy differences are physically meaningful.
Answer: C
Both are true and the reason gives the necessity: steam tables take liquid water at the triple point as zero, and any other choice shifts every value by a constant that cancels in every difference. The choice is a convention rather than a physical fact.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development