From d27b9ef9b1957deb0265db5a7ab827ba26ef2854 Mon Sep 17 00:00:00 2001
From: Ray Speth <speth@mit.edu>
Date: Sat, 18 Apr 2015 14:05:31 -0400
Subject: [PATCH] [Thermo] Species size defaults to 1.0

This mostly affects surface phases, where a species size of 0 causes
several problems.
---
 include/cantera/thermo/Species.h              | 2 +-
 interfaces/cython/cantera/test/test_thermo.py | 2 +-
 src/thermo/Species.cpp                        | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/cantera/thermo/Species.h b/include/cantera/thermo/Species.h
index 1f79cc9bb..7664acd40 100644
--- a/include/cantera/thermo/Species.h
+++ b/include/cantera/thermo/Species.h
@@ -24,7 +24,7 @@ public:
 
     //! Constructor
     Species(const std::string& name, const compositionMap& comp,
-            double charge=0.0, double size=0.0);
+            double charge=0.0, double size=1.0);
 
     Species(const Species& other);
     Species& operator=(const Species& other);
diff --git a/interfaces/cython/cantera/test/test_thermo.py b/interfaces/cython/cantera/test/test_thermo.py
index bab21d297..095b37f0e 100644
--- a/interfaces/cython/cantera/test/test_thermo.py
+++ b/interfaces/cython/cantera/test/test_thermo.py
@@ -638,7 +638,7 @@ class TestSpecies(utilities.CanteraTest):
 
     def test_defaults(self):
         s = ct.Species('H2')
-        self.assertEqual(s.size, 0.0)
+        self.assertEqual(s.size, 1.0)
         self.assertEqual(s.charge, 0.0)
 
     def test_index_accessor(self):
diff --git a/src/thermo/Species.cpp b/src/thermo/Species.cpp
index d9fe715dc..f69e9c124 100644
--- a/src/thermo/Species.cpp
+++ b/src/thermo/Species.cpp
@@ -10,7 +10,7 @@ namespace Cantera {
 
 Species::Species()
     : charge(0.0)
-    , size(0.0)
+    , size(1.0)
 {
 }