Cantera 2.6.0

### - r -

- rate_mutex : ReactionRateFactory
- rate_units : Reaction
- rDeltaP_ : PlogRate
- reactants : Reaction
- reaction_mutex : ReactionFactory
- reaction_type : Reaction
- ready : BlowersMaselData, FalloffData
- recipT : ReactionData
- recipTe : TwoTempPlasmaData
- ReferenceMoleFraction : vcs_SpeciesProperties
- relTolerance : EquilOpt
- reversible : Reaction
- rotational_relaxation : GasTransportData