\ifthenelse{\equal{IJMPB}{\TschStyle}}{% 
%
\begin{table}[htbp] 
\tbl{Isobaric heat capacities $c_p$,
     relative molar masses $M_r$,  
     isochoric heat capacities $c_v \approx c_p - R/M_r$
     with universal gas constant $R = 8.314472\ {\rm J}/{\rm mol}\,{\rm K}$, 
     mass densities $\varrho$,
     thermal conductivities $\lambda$,
     and effective thermal conductivities 
     $\lambda_{\mbox{\scriptsize\rm eff}} = \lambda/ ( \varrho\cdot c_v )$  
     of the gaseous components 
     of the Earth's atmosphere
     at normal pressure ($101.325\,{\rm kPa}$) }
{
\begin{tabular}{@{}cccccccc@{}} \Hline 
\\[-1.8ex] 
Gas            & $c_p$                  
               & $M_r$                                                                  
               & $R/M_r$                   
               & $c_v$   
               & $\varrho$               
               & $\lambda$              
               & $\lambda_{\mbox{\scriptsize\rm eff}}$ 
\\ 
               & $[{\rm J}/{\rm kg\,K}]$ 
               & $[{\rm g}/{\rm mol}]$ 
               & $[{\rm J}/{\rm kg\,K}]$ 
               & $[{\rm J}/{\rm kg\,K}]$                      
               & $[{\rm kg}/{\rm m}^3]$ 
               & $[{\rm Js}/{\rm mK}]$     
               & $[{\rm m}^2/{\rm s}]$  
\\[0.8ex]
\hline 
\\[-1.8ex] 
${\rm N}_2$    & \phantom{}1039          
               & 28.01                  
               & 297                     
               & 742                       
               & 1.1489                 
               & 0.0259                
               & $3.038 \cdot 10^{-5}$                 
\\
${\rm O}_2$    & \phantom{0}919          
               & 32.00                  
               & 260                     
               & 659                       
               & 1.3080                 
               & 0.0262                
               & $3.040 \cdot 10^{-5}$                 
\\
${\rm Ar}$     & \phantom{0}521          
               & 39.95                  
               & 208                     
               & 304                       
               & 1.6328                 
               & 0.0178                
               & $3.586 \cdot 10^{-5}$                 
\\
${\rm CO}_2$   & \phantom{0}843          
               & 44.01                  
               & 189                     
               & 654                       
               & 1.7989                  
               & 0.0167                
               & $1.427 \cdot 10^{-5}$                 
\\[0.8ex]
\hline
\\[-1.8ex] 
\end{tabular}
}
\label{table:PB006}
\end{table}
% 
}{}
\ifthenelse{\equal{arXivOrTeX4ht}{\TschStyles}}{% 
%
\begin{table}[htbp] 
{
\begin{center}
\vspace*{0.5cm}
\begin{tabular}{|c|c|c|c|c|c|c|c|} 
\hline 
Gas            & $c_p$                  
               & $M_r$                                                                  
               & $R/M_r$                   
               & $c_{\rm v}$   
               & $\varrho$               
               & $\lambda$              
               & $a_{\rm v}$ 
\\ 
               & $[{\rm J}/{\rm kg\,K}]$ 
               & $[{\rm g}/{\rm mol}]$ 
               & $[{\rm J}/{\rm kg\,K}]$ 
               & $[{\rm J}/{\rm kg\,K}]$                      
               & $[{\rm kg}/{\rm m}^3]$ 
               & $[{\rm Js}/{\rm mK}]$     
               & $[{\rm m}^2/{\rm s}]$  
\\
\hline 
${\rm N}_2$    & \phantom{}1039          
               & 28.01                  
               & 297                     
               & 742                       
               & 1.1489                 
               & 0.0259                
               & $3.038 \cdot 10^{-5}$                 
\\
${\rm O}_2$    & \phantom{0}919          
               & 32.00                  
               & 260                     
               & 659                       
               & 1.3080                 
               & 0.0262                
               & $3.040 \cdot 10^{-5}$                 
\\
${\rm Ar}$     & \phantom{0}521          
               & 39.95                  
               & 208                     
               & 304                       
               & 1.6328                 
               & 0.0178                
               & $3.586 \cdot 10^{-5}$                 
\\
${\rm CO}_2$   & \phantom{0}843          
               & 44.01                  
               & 189                     
               & 654                       
               & 1.7989                  
               & 0.0167                
               & $1.427 \cdot 10^{-5}$                 
\\
\hline
\end{tabular}
\end{center}
}
\caption{Isobaric heat capacities $c_{\rm p}$,
         relative molar masses $M_r$,  
         isochoric heat capacities 
         $c_{\rm v} \approx c_{\rm p} - R/M_r$
         with universal gas constant $R = 8.314472\ {\rm J}/{\rm mol}\,{\rm K}$, 
         mass densities $\varrho$,
         thermal conductivities $\lambda$,
         and isochoric thermal diffusivities 
         $a_{\rm v}$ 
         of the gaseous components 
         of the Earth's atmosphere
         at normal pressure ($101.325\,{\rm kPa}$) }
\label{table:PB006}
\end{table}
% 
}{}
