Question

Газ получил количество теплоты равное 100 Дж в то же время его внутренняя энергия уменьшилась на 100 Дж . Чему равна работа совершенная газом

Answer 1

Согласно первому закону термодинамики, А' = 200 Дж

Answer 2

Gas Work Calculation

To calculate the work done by the gas, we can use the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system. Mathematically, this can be expressed as:

ΔU = Q - W

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

Given that the gas received 100 J of heat and its internal energy decreased by 100 J, we can calculate the work done by the gas.

Calculation

The work done by the gas can be calculated using the first law of thermodynamics equation:

ΔU = Q - W

Given: - Q (heat added) = 100 J - ΔU (change in internal energy) = -100 J (as the internal energy decreased)

We can rearrange the equation to solve for W:

W = Q - ΔU

Substitute the given values:

W = 100 J - (-100 J)

W = 100 J + 100 J

W = 200 J

Therefore, the work done by the gas is 200 J.