Abstract: | The emissivity in the 2.7 m range is examined with a spectrometer having 25 cm–1 for 2.5,
,7.5 cm·atm,4
8cm·atm, 400T1000° K; 150P730 mm Hg. It is found that relation (1) is obeyed to within /0.1, though the calculated transmission is usually less than the measured value. It is shown that the relation is obeyed on account of the mutual position of the CO2 and H2O lines in the band, i.e., one gas may be considered as unselective relative to the other. |