C
C There are a total of 2 entries in the algebraic variable array.
C There are a total of 2 entries in each of the rate and state variable arrays.
C There are a total of 8 entries in the constant variable array.
C
C
C CONSTS(7) is k2 in component moussa (per_sec).
C CONSTS(8) is k1 in component moussa (per_sec).
C STATES(1) is X1 in component moussa (conc).
C STATES(2) is X2 in component moussa (conc).
C VOI is time in component moussa (second).
C ALGBRC(1) is A in component moussa (conc).
C ALGBRC(2) is D in component moussa (conc).
C CONSTS(1) is R in component moussa (gas_constant).
C CONSTS(2) is E1 in component moussa (J_per_mole).
C CONSTS(3) is E2 in component moussa (J_per_mole).
C CONSTS(4) is A1 in component moussa (per_sec).
C CONSTS(5) is A2 in component moussa (per_sec).
C CONSTS(6) is T in component moussa (kelvin).
C RATES(1) is d/dt X1 in component moussa (conc).
C RATES(2) is d/dt X2 in component moussa (conc).
C
      SUBROUTINE initConsts(CONSTS, RATES, STATES)
      REAL CONSTS(*), RATES(*), STATES(*)
      STATES(1) = 1
      STATES(2) = 0
      CONSTS(1) = 8.3
      CONSTS(2) = 2.5E5
      CONSTS(3) = 1.28E5
      CONSTS(4) = 0.0683E38
      CONSTS(5) = 0.0283E19
      CONSTS(6) = 325
      CONSTS(7) =  CONSTS(5)*EXP(- CONSTS(3)/( CONSTS(1)*CONSTS(6)))
      CONSTS(8) =  CONSTS(4)*EXP(- CONSTS(2)/( CONSTS(1)*CONSTS(6)))
      RETURN
      END
      SUBROUTINE computeRates(VOI, CONSTS,  RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      RATES(1) =  - CONSTS(8)*STATES(1)
      RATES(2) =  CONSTS(8)*STATES(1) -  CONSTS(7)*STATES(2)
      RETURN
      END
      SUBROUTINE computeVariables(VOI, CONSTS, RATES, STATES, ALGBRC)
      REAL VOI, CONSTS(*), RATES(*), STATES(*), ALGBRC(*)
      ALGBRC(1) = STATES(1)+STATES(2)
      ALGBRC(2) = 1.00000 - ALGBRC(1)
      RETURN
      END