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# Specific Heats of Nitrogen

The mean specific heats of pure nitrogen at constant pressure (1 atm.) have been determined at various temperatures given in the following table.

cp=specific heat at constant pressure.
Cp=molecular heat at constant pressure, i.e. cp=Mcp.

### Specific and molar heats of gaseous nitrogen at constant pressure

 t° c. cp Cp 0 0.2491 6.98 100 0.2501 7.01 200 0.2510 7.03 300 0.2520 7.06 400 0.2529 7.09 500 0.2539 7.11 600 0.2548 7.14 700 0.2558 7.17 800 0.2567 7.19 900 0.2577 7.22 1000 0.2586 7.25 1100 0.2596 7.27 1200 0.2605 7.30 1300 0.2615 7.33 1400 0.2624 7.35

The value of cp is given by the equation

cp = 0.2491 + 0.0000095t.

In the next table are given the molecular specific heats at constant volume and the ratio Cp/Cv.

### Molar heats of gaseous nitrogen at constant volume, and ratio of the specific heats

 t° C. Cv γ=Cp/Cv 0 4.890 1.408 100 4.926 1.404 200 4.968 1.400 300 5.014 1.396 400 5.066 1.392 500 5.104 1.389 600 5.143 1.386 700 5.184 1.383 800 5.238 1.379 900 5.280 1.376 1000 5.308 1.374

The thermal conductivity of the gas at 0° C. is 0.00005660, at 55° C. is 0.0000569, and at 100° C. is 0.0000718.

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