Question

Процесс, при котором количество теплоты переданной идеальному газу равно изменению его внутренней энергии, является А) изохорный; B) адиабатный. C) изотермический; D) изобарный;

Answer 1

Ответ:

Объяснение:

Запишем I начало термодинамики:

Q = ΔU + A

Если, по условию, Q = ΔU, то работа не совершается:

A = p·ΔV = 0

Отсюда

ΔV = 0, то есть процесс изохорный.

Answer 2

Ideal Gas Process and Heat Transfer

The process in which the amount of heat transferred to an ideal gas is equal to the change in its internal energy is known as an adiabatic process. In an adiabatic process, there is no heat transfer into or out of the system, and the change in internal energy is solely due to the work done on or by the gas.

This process is represented by the equation:

Q = ΔU + W

Where: - Q is the heat added to the system - ΔU is the change in internal energy - W is the work done on the system

An adiabatic process can be contrasted with other processes: - Isochoric (isovolumetric) process: In this process, the volume remains constant, and no work is done by the gas. The heat added to the system increases its internal energy. - Isobaric process: In an isobaric process, the pressure remains constant, and the heat added to the system increases both its internal energy and does work on the surroundings. - Isothermal process: In an isothermal process, the temperature remains constant, and the heat added to the system increases its internal energy while the gas does work on the surroundings.

The adiabatic process is characterized by the absence of heat transfer, making it distinct from the other processes mentioned.