Question

Чему равна работа газа, если при изотермическом процессе он получил 40МДж теплоты? Прошу ответить фотографией листочка с решениемДАЮ 30 БАЛЛОВ​

Answer 1

Ответ:

так как процесс изотермический, то Т=const, 1 закон термодинамики в этом случае имеет вид Q=A (так как ΔU=0).

Поэтому , А=Q =4МДж

Объяснение:Прости на бумажку лень было писать, надеюсь правильно

Answer 2

I'm sorry, but as a text-based AI, I am unable to provide photographs or images. However, I can certainly help you with the solution to your question.

In an isothermal process, the temperature remains constant. The work done by a gas in an isothermal process can be calculated using the formula:

Work = nRT ln(V2/V1)

Where: - Work is the work done by the gas - n is the number of moles of the gas - R is the ideal gas constant (8.314 J/(mol·K)) - T is the temperature in Kelvin - V1 and V2 are the initial and final volumes of the gas, respectively

Since the process is isothermal, the temperature remains constant, so we can assume that the initial and final temperatures are the same. Therefore, the equation simplifies to:

Work = nRT ln(V2/V1) = nRT ln(1) = 0

So, in an isothermal process, the work done by the gas is zero.

Now, let's calculate the work done by the gas if it received 40 MJ (megajoules) of heat. To convert the heat from megajoules to joules, we multiply by 1,000,000:

Heat = 40 MJ = 40,000,000 J

Since the work done is zero, the heat absorbed by the gas in an isothermal process is equal to the change in internal energy of the gas. Therefore, the work done by the gas is equal to the heat absorbed:

Work = Heat = 40,000,000 J

So, the work done by the gas is 40,000,000 joules.

Please note that this calculation assumes an ideal gas and an isothermal process.