ADDED   mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_cr.r
Index: mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_cr.r
==================================================================
--- /dev/null
+++ mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_cr.r
@@ -0,0 +1,21 @@
+%% CR file for rate-of reaction component RATE
+
+OPERATOR Rate;
+
+% Reaction rate
+FOR ALL k,q,h,n,Conc,Temp LET
+    Rate(k,q,h,n,flow,1,
+         Conc,effort,1,
+	 Temp,effort,2
+	 ) 
+	 = k*Conc^n*e^(-q/Temp);
+
+% Heat
+FOR ALL k,q,h,n,Conc,Temp LET
+    Rate(k,q,h,n,flow,2,
+         Conc,effort,1,
+	 Temp,effort,2
+	 ) 
+	 = k*Conc^n*h*e^(-q/Temp);
+
+END;

ADDED   mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_desc.tex
Index: mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_desc.tex
==================================================================
--- /dev/null
+++ mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_desc.tex
@@ -0,0 +1,32 @@
+% -*-latex-*- Put EMACS into LaTeX-mode
+% Verbal description for system Rate (Rate_desc.tex)
+% Generated by MTT on Tue Mar 14 17:54:06 GMT 2000.
+
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% Version control history
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% $Id$
+% %% $Log$
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+   The acausal bond graph of system \textbf{Rate} is
+   displayed in Figure \Ref{fig:Rate_abg.ps} and its label
+   file is listed in Section \Ref{sec:Rate_lbl}.
+   The subsystems are listed in Section \Ref{sec:Rate_sub}.
+
+
+This component represents rate of reaction equations corresponding to
+the chemical reaction:
+\begin{equation}
+  \text{nA} \rightarrow \text{B}
+\end{equation}
+The relevant equations are
+\begin{equation}
+  \begin{align}
+     \frac{dc_a}{dt} &= k_a c_a^n e^{-\frac{q_a}{T}} \tag{Rate of reaction}\\
+     Q &= h_a k_a c_a^n e^{-\frac{q_a}{T}} \tag{Heat of reaction}
+  \end{align}
+\end{equation}
+where $\frac{dc_a}{dt}$ is the rate of change of concentration of
+species A and $Q$ is the corresponding heat generated.
+

ADDED   mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_lbl.txt
Index: mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_lbl.txt
==================================================================
--- /dev/null
+++ mttroot/mtt/lib/comp/compound/Chemical/Rate/Rate_lbl.txt
@@ -0,0 +1,30 @@
+%% Label file for system Rate (Rate_lbl.txt)
+%SUMMARY Rate
+%DESCRIPTION 
+
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% Version control history
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% %% $Id$
+% %% $Log$
+% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+% Port aliases
+%ALIAS	in	conc
+%ALIAS	out	thermal
+
+% Argument aliases
+%ALIAS	$1	k,q,h,n
+
+%% Each line should be of one of the following forms:
+%	     a comment (ie starting with %)
+%	     component-name	cr_name	arg1,arg2,..argn
+%	     blank
+
+% ---- Component labels ----
+	r	 Rate	k,q,h,n
+
+% Component type SS
+	[conc]		SS		external,external
+	[thermal]	SS		external,external