/// <summary>Get <see cref="MolarFlow"/> from <see cref="AmountOfSubstance"/> divided by <see cref="Duration"/>.</summary>
 public static MolarFlow operator /(AmountOfSubstance amountOfSubstance, Duration duration)
 {
     return(MolarFlow.FromMolesPerSecond(amountOfSubstance.Moles / duration.Seconds));
 }
 /// <summary>Get <see cref="MolarFlow"/> from <see cref="AmountOfSubstance"/> divided by <see cref="TimeSpan"/>.</summary>
 public static MolarFlow operator /(AmountOfSubstance amountOfSubstance, TimeSpan timeSpan)
 {
     return(MolarFlow.FromMolesPerSecond(amountOfSubstance.Moles / timeSpan.TotalSeconds));
 }