Question

Найти среднюю кинетическую энергию поступательного движения молекул газа при температуре 300К. Пожалуйста, помогите! ОЧЕНЬ НАДО!!!!

Answer 1

k=1,38*10^(-23) Дж/К

E=i/2kT

i=3 для одноатомного газа

i=5 для двоатомного газа

i=6 для трехатомного и больше

Answer 2

Calculation of Average Kinetic Energy of Gas Molecules at 300K

To calculate the average kinetic energy of gas molecules at a given temperature, we can use the formula:

Average Kinetic Energy = (3/2) * k * T

Where: - k is the Boltzmann constant (1.38 x 10^-23 J/K) - T is the temperature in Kelvin

In this case, the given temperature is 300K. Let's substitute the values into the formula:

Average Kinetic Energy = (3/2) * (1.38 x 10^-23 J/K) * 300K

Calculating this expression will give us the average kinetic energy of gas molecules at 300K.

Let's perform the calculation:

Average Kinetic Energy = (3/2) * (1.38 x 10^-23 J/K) * 300K

Average Kinetic Energy = 2.07 x 10^-21 J

Therefore, the average kinetic energy of gas molecules at a temperature of 300K is approximately 2.07 x 10^-21 J.

Please note that the above calculation assumes an ideal gas and uses the simplified formula for average kinetic energy. In reality, the behavior of gas molecules can be more complex, and additional factors may need to be considered for a more accurate calculation.