Question

Помогите, пожалуйста! Молекулы некоторого газа имеют 6 степеней свободы. Для нагревания на ΔТ = 115К при постоянном давлении необходимо затратить количество теплоты Q1 = 29,2 Дж. На сколько градусов нужно охладить газ при постоянном объеме, чтобы выделилось количество теплоты Q2 = 35 Дж?

Answer 1

Ответ:

Ответ. Q1=(0,5*j+1)*R*dT1; Q2=0,5*j*R*dT2; Q2/Q1=(0,5*j*dT2)/((0,5*j+1)*dT1);dT2=((Q2/Q1)*((0,5*j+1)*dT1))/(0,5*j);Q1=29,2; Q2=35;j=6;dT1=115;

Объяснение:

Answer 2

Calculation of Degrees of Freedom

To determine the number of degrees of freedom for a gas molecule, we need to consider its translational, rotational, and vibrational motion. In this case, the gas molecule has 6 degrees of freedom.

Calculation of Heat Transfer at Constant Pressure

To calculate the heat transfer at constant pressure, we can use the equation:

Q1 = n * Cp * ΔT

Where: - Q1 is the amount of heat transferred - n is the number of moles of the gas - Cp is the molar heat capacity at constant pressure - ΔT is the change in temperature

In this case, we are given that ΔT = 115 K and Q1 = 29.2 J. However, we do not have information about the number of moles or the molar heat capacity of the gas. Therefore, we cannot calculate the exact values for these parameters.

Calculation of Heat Transfer at Constant Volume

To calculate the heat transfer at constant volume, we can use the equation:

Q2 = n * Cv * ΔT

Where: - Q2 is the amount of heat transferred - n is the number of moles of the gas - Cv is the molar heat capacity at constant volume - ΔT is the change in temperature

In this case, we are given that ΔT = -35 J and Q2 = 35 J. However, we do not have information about the number of moles or the molar heat capacity of the gas. Therefore, we cannot calculate the exact values for these parameters.

Please provide additional information about the number of moles and the molar heat capacity of the gas so that we can calculate the required temperature change at constant volume.