{
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   "cell_type": "markdown",
   "id": "2f323a90-1e4f-4a27-a495-38dbf8dad3e3",
   "metadata": {},
   "source": [
    "# Vapor pressure and boiling temperature of a pure substance "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "06f40029-24e4-4f91-b502-6b9265818ed8",
   "metadata": {},
   "outputs": [],
   "source": [
    "from feos.si import BAR, KELVIN\n",
    "from feos.eos import EquationOfState, PhaseEquilibrium\n",
    "from feos.pcsaft import PcSaftParameters\n",
    "\n",
    "parameters = PcSaftParameters.from_json(\n",
    "    substances=['methanol'], \n",
    "    pure_path='../parameters/pcsaft/gross2002.json'\n",
    ")\n",
    "eos = EquationOfState.pcsaft(parameters)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "38b998ad-4fd0-4a1e-8fa3-991a13fc0860",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[156.9727578353079 kPa]"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# returns pure substance vapor pressures\n",
    "vapor_pressure = PhaseEquilibrium.vapor_pressure(eos, 350 * KELVIN)\n",
    "vapor_pressure"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "7e22455b-7f69-4745-9d92-8e991f45ba81",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[426.1370718962783 K]"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# returns pure substance boiling temperatures\n",
    "boiling_temperature = PhaseEquilibrium.boiling_temperature(eos, 15 * BAR)\n",
    "boiling_temperature"
   ]
  }
 ],
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