Question

5 л кислорода адиабатически сжимаются до объема 1 л,причем в конце сжатия установилось давление 1,6 МПа.Под каким давлением находился газ до сжатия?

Answer 1

Показатель адиабаты еле написал)

Answer 2

Calculation of Initial Pressure

To determine the initial pressure of the gas before compression, we can use the ideal gas law equation, which states that the product of pressure (P), volume (V), and temperature (T) of an ideal gas is constant:

P1 * V1 / T1 = P2 * V2 / T2

In this case, the volume of the gas is initially 5 L and is compressed adiabatically to a final volume of 1 L. The final pressure is given as 1.6 MPa.

Let's assume that the temperature remains constant during the compression process. Therefore, we can rewrite the equation as:

P1 * 5 / T1 = 1.6 * 1 / T2

Since the temperature is constant, we can cancel it out:

P1 * 5 = 1.6 * 1

Now we can solve for P1, the initial pressure:

P1 = (1.6 * 1) / 5

Calculating this expression, we find:

P1 = 0.32 MPa

Therefore, the gas was initially at a pressure of 0.32 MPa before compression.