Question

Під час ізобарного розширення гелію від 5 м3 до 6 м3 його внутрішня енергія збільшилася на 150 кДж. Знайдіть тиск гелію. Відповідь подайте в кПа. Відповідь 100 , просто розв'яжіть

Answer 1

Ответ: 100 кПа

Объяснение:

Answer 2

To find the pressure of helium during its isobaric expansion, we can use the equation:

ΔU = Q - W

where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system.

In this case, the internal energy of helium increased by 150 kJ during its expansion from 5 m³ to 6 m³. We need to find the pressure of helium.

Finding the Work Done:

During an isobaric process, the work done by the system is given by the equation:

W = PΔV

where P is the pressure and ΔV is the change in volume.

In this case, the change in volume is 6 m³ - 5 m³ = 1 m³.

Substituting Values:

We can substitute the given values into the equation to find the work done:

150 kJ = P * 1 m³

Converting Units:

To find the pressure in kPa, we need to convert the given value of 150 kJ to J:

150 kJ = 150,000 J

Solving for Pressure:

Now we can solve for the pressure:

150,000 J = P * 1 m³

Dividing both sides by 1 m³:

P = 150,000 J / 1 m³

Converting J to kPa:

1 kPa = 1000 J

P = 150,000 J / 1 m³ * (1 kPa / 1000 J)

Simplifying:

P = 150 kPa

Therefore, the pressure of helium during its isobaric expansion is 150 kPa.

Please let me know if you need any further assistance!