universal gas constant
- noun
- /ˌjunɪˈvɜrsəl ɡæs ˈkɒnstənt/
- Specialized
:
constante universal de los gases
- The value of the universal gas constant R is approximately 8.3143 joules per kelvin per mole.
Examples
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In their standard state, Q is our reaction quotient products over reactants and R is the universal gas constant and T is temperature.
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And this is your more fraction, more fraction times R Universal gas constant times TPV equals RT, right?
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We call it the specific gas constant, not the universal gas constant, and that again is the temperature in degrees Kelvin.
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In chemistry, the universal gas constant appears in the ideal gas law equation PV=nRT.
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To calculate the pressure of an ideal gas, we use the universal gas constant along with the gas's volume and temperature.
Synonyms
3
8.9
A constant used in the gas law to relate pressure, volume, and temperature
A fixed number used in the ideal gas law to connect energy, temperature and amount of gas
Surface Forms
Morphology
The phrase is fully compositional: 'universal' (applying everywhere), 'gas' (a gaseous substance) and 'constant' (a fixed value) together yield the obvious meaning of a fixed value that applies to gases generally. Although the term is technical and a learner might not know the numerical value or its use in equations, a B1 learner who knows the constituents can understand the general concept.
Etymology
Universal gas constant comes from the simple idea that one fixed number works for many gases in the ideal gas law. Here universal means 'the same for every gas' and constant means a 'fixed number', so the phrase names the number R that scientists use in gas calculations.