From 13c125253905c955f46ebb704ad9436f90274e55 Mon Sep 17 00:00:00 2001
From: Maximilian Reininghaus <maximilian.reininghaus@kit.edu>
Date: Thu, 2 May 2019 18:40:34 -0300
Subject: [PATCH] added universal gas constant

---
 Framework/Units/PhysicalConstants.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Framework/Units/PhysicalConstants.h b/Framework/Units/PhysicalConstants.h
index 75dfc51ce..78f9ecd35 100644
--- a/Framework/Units/PhysicalConstants.h
+++ b/Framework/Units/PhysicalConstants.h
@@ -50,6 +50,9 @@ namespace corsika::units::constants {
   constexpr quantity<mass_d> u{Rep(1.6605402e-27L) * kilogram};
 
   auto constexpr nucleonMass = 0.5 * (0.93827 + 0.93957) * 1e9 * electronvolt;
+  
+  // molar gas constant
+  auto constexpr R = Rep(8.314'459'8) * joule / (mole * kelvin);
 
   // etc.
 
-- 
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