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Should you invest in an engine that is said to burn air at room temperature when you were told that a special chamber allows oxygen to combine with N2 to form NO2 (nitrogen dioxide)using the reaction below.
1/2N2(g) + O2(g)—>NO2(g)
Calculate ^H, ^ S then ^G
N:B Obtain relevant thermodynamic parameter values from table
Possible signs:
^G= ^H. T^G. Occur
- - +
Yes. +. +. +
No.
+. No. -
Yes at. higher. T.
-yes. -no
Yes. at lower. temperature