The relation R/NA = 1.38 x 10^-25 JK-1 in a gas law is known as:
Correct answer: D. Boltzmann's constant
- A. Avogadro's constant
- B. Charles constant
- C. Newton's constant
- D. Boltzmann's constant
Explanation
The universal gas constant divided by Avogadro's number is the Boltzmann constant, k = R/NA = 1.38 x 10^-23 J/K. It is the gas constant per molecule rather than per mole, and it is what turns temperature into an energy per molecule in the term kT.
This question appeared on the UHS MDCAT 2016 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Thermodynamics
Thermal equilibrium and heat explain how temperature and energy transfer are related, while molar specific heats describe the heat required by a gas at constant volume or constant pressure. The first law connects heat supplied, work done and change in internal energy, with sign conventions kept distinct from temperature changes.
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 Thermodynamics questions
At the triple point of water, the pressure of a gas is 2680 Pa, by changing 'T' the pressureincreases to 4870 Pa. Then 'T' is:
In 'General Gas Equation PV=nRT', 'n' represents the number of moles of gas.Which of the following represents the relation of 'n'?
A gas containing 'N' number of molecules of a gas having mass of each molecule'm' is in a cubic container having length of each side 'a'. What is the density of gascontained in a cube?
The relation 'PV = nRT' shows which law of physics:
Estimate pressure of air molecules at 273 K, if mean square speed is 500m²/s² and density of air is 6kg/m³:
1 mole of a gas occupies volume 1.00 x 10^-2 m³ in a gas cylinder whose pressure is equal to 2.50 x 10^5 Pa.The temperature of cylinder is: