molar volume of ideal gas (273.15 K, … unit (key) Unit in physical_constants indexed by key.

4.1357 × 10-15 eV s. reduced Planck's constant. 3.990312712e-10 J Hz^-1 mol^-1.

The value of Planck's constant or value of h has got prime importance in quantum mechanics. s), which are also the dimensions of angular momentum..

n. Symbol h The constant of proportionality relating the energy of a photon to the frequency of that photon.

Planck further assumed that when an oscillator changes from a state of energy E 1 to a state of lower energy E 2, the discrete amount of energy E 1 − E 2, or quantum of radiation, is equal to the product of the frequency of the radiation, symbolized by the Greek letter ν and a constant h, now called Planck’s constant, that he determined from blackbody radiation data; i.e., E 1 − E 2 = hν. No, gas constant is having a value of 8.314Jk-1mol-1 Whereas plancks constant has a value of 6.6*10-31 Asked in Units of Measure , Physics How do you prove that the unit of time constant is seconds ?