Journal article

Temperature jump measurements in gas kinetics

The temp. jump relaxation method was used for kinetic measurements in the gas phase. The system N2O4 .dblarw. 2NO2 was studied. Fast temp. jumps were induced by IR absorption from a CO2 laser. Temp. jumps of <1 K led to readily detectable concn. changes which were monitored by UV absorption in a simple single shot expt. krec(Ar) is 1.05 * 1010 cm3-mol-1-s-1 at PAr = 1 bar and T = 258 K, in agreement with recent exptl. data.


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