Source code for encomp.constants

"""
Contains constants used elsewhere in the library.
"""

from dataclasses import dataclass

from .units import Quantity as Q




@dataclass
class Constants:
    """
    Collection of constants.
    Use a single instance of this class to refer to these constants.
    """

    R = Q(8.3144598, "kg*m²/K/mol/s²")
    SIGMA = Q(5.670374419e-8, "W/m**2/K**4")

    normal_conditions_pressure = Q(1, "atm")
    normal_conditions_temperature = Q(0, "°C").to("K")

    standard_conditions_pressure = Q(1, "atm")
    standard_conditions_temperature = Q(15, "degC").to("K")



CONSTANTS = Constants()