Discussion
Which value does the specific gas constant for dry air take?
Answer: B
Dividing the universal gas constant of 8.314 joules per mole per kelvin by the mean molecular mass of dry air, 0.02897 kilograms per mole, gives 287 joules per kilogram per kelvin. Water vapour, being lighter, has the larger value of 461. The universal constant applies per mole rather than per kilogram, and the specific heat capacity is a related but distinct quantity that appears in the first law rather than in the equation of state. A single measurement chosen to respond to the one asymmetry beats several that respond to shared behaviour. A limit that survives making every external component ideal is an intrinsic one, and worth knowing for that reason. A limit that survives making every external component ideal is an intrinsic one, and worth knowing for that reason.
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