Question

P1=2MПа P2=5MПа V1=3м^3 t=const V2=?

Answer 1

Ответ:

Объяснение:

Поскольку t - const, то по закону Бойля-Мариотта:

p₁·V₁ = p₂·V₂

V₂ = p₁·V₁ / p₂ = (p₁/p₂) ·V₁ = (5/2)·3 = 7,5 м³

Answer 2

To find the final volume (V2) when the initial pressure (P1), final pressure (P2), initial volume (V1), and temperature (t) remain constant, we can use Boyle's law, which states that the product of pressure and volume is constant for a fixed amount of gas at a constant temperature.

The formula for Boyle's law is given as: P1 * V1 = P2 * V2

We can rearrange the equation to solve for V2: V2 = (P1 * V1) / P2

Substituting the given values: P1 = 2 MPa = 2 * 10^6 Pa P2 = 5 MPa = 5 * 10^6 Pa V1 = 3 m^3

V2 = (2 * 10^6 Pa * 3 m^3) / (5 * 10^6 Pa)

Simplifying the expression: V2 = (6 * 10^6 Pa * m^3) / (5 * 10^6 Pa) V2 = 6/5 m^3 V2 = 1.2 m^3

Therefore, the final volume (V2) is 1.2 m^3.