Boltzmann's constant,k,has a value of 1.381 $\times$ 10^-23 J/K.What is the significance of the constant? A)It defines a characteristic energy at the microscopic level given the temperature in kelvins. B)It allows the pressure of the gas to be calculated given the volume and temperature. C)It measures the average kinetic energy of a molecule at a given temperature for each degree of freedom. D)(A)and (B) E)(A)and (C)

Question

Quizplus · Accepted Answer

Boltzmann's constant relates the average kinetic energy of a molecule to the temperature and determines the characteristic energy at the microscopic level for each degree of freedom. Thus, it measures the amount of energy required for a molecule to change its state, and it is closely related to the entropy, which is a measure of disorder in a system. Therefore, option (C) is correct, as well as (A), since Boltzmann's constant allows calculating the energy at the microscopic level given the temperature. Option (B) is incorrect because pressure depends on other factors such as the number of molecules and their interactions, and Boltzmann's constant does not play a direct role in this calculation.

Boltzmann's Constant,k,has a Value of 1 ×\times× 10-23 J/K

Boltzmann's Constant,k,has a Value of 1 $\times$ 10^-23 J/K