There are 12 liters of carbon dioxide weighing 0.2 kg and at a temperature of 288K. Determine the gas pressure.

To solve the problem, we will apply the basic equation in thermodynamics – the Mendeleev-Clapeyron equation.

Let’s write the formula:

pV = m / M * RT,

where p is the pressure,

V – volume, m – gas mass, M – its volume,

R – universal gas constant, T – absolute temperature.

Let us express their pressure formulas:

p = (mRT) / MV.

We have enough values to perform calculations. We substitute the given values into the formula and calculate the pressure:

p = (mRT) / MV = (0.2 * 8.31 * 288) / (0.044 * 0.012) = 0.9 MPa.

Answer: 0.9 MPa.