========================================================================================
L 	 	 T 		 x 		 T_average 	(7+x)ave 	k_2
(ft) 	 	 (°C) 		   		 (°C) 	  
========================================================================================
1.000000 	 338.000000 	 0.061538 	 334.000000 	 7.030769 	 0.461034
2.000000 	 348.000000 	 0.138462 	 343.000000 	 7.100000 	 0.675498
3.000000 	 361.000000 	 0.238462 	 354.500000 	 7.188462 	 1.095644
4.000000 	 380.000000 	 0.384615 	 370.500000 	 7.311538 	 2.280240
5.000000 	 415.000000 	 0.653846 	 397.500000 	 7.519231 	 9.503472
6.000000 	 447.000000 	 0.900000 	 431.000000 	 7.776923 	 55.302564
9.000000 	 458.000000 	 0.984615 	 452.500000 	 7.942308 	 145.608974

The activation energy from the slope =43.147788 kcal/mol