The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?
Correct answer: A. 1 atmosphere
- A. 1 atmosphere
- B. 1 Newton per square meter
- C. 1 Pascal
- D. data is insufficient
Explanation
A mercury column of height 76 cm, equal to 760 mm, at 0°C produces the standard atmospheric pressure of 1 atm. This pressure is approximately 1.013 x 10^5 Pa, not 1 Pa or 1 N m^-2. The likely trap is c, because pascal is the pressure unit, but the stated pressure is much larger than 1 Pa.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
Practise Thermodynamics
714 free Thermodynamics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Thermal Equilibrium and Heat questions
If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of______________?
Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their_____________?
Boyles law helds for ideal gases in________________?
Metabolism is the name of a process in which energy transformation takes place within______________?
We can produce heat by________________?
At constant temperature the graph between V and 1/P is_____________?