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Interactive 3D chemistry animations of reaction mechanisms and 3D models of chemical structures for students studying University courses and advanced school chemistry hosted by University of Liverpool.
Consider as an example the reaction between one methane molecule (CH 4) and two diatomic oxygen molecules (O 2) to produce one carbon dioxide molecule (CO 2) and two water molecules (H 2 O).
An increase in temperature will cause a reaction to shift in a way that uses the excess heat (favors the endothermic reaction), while a decrease in temperature will result in a reaction shifting to produce heat (favors the exothermic reaction). The reaction being studied is: 2NO 2 (g) ↔ N 2 O 4 (g) ΔH = -58 kJ/mol N 2 O 4 Brown Colorless
15 sie 2020 · Four glass tubes are sealed with NO 2 gas. The first tube is placed in a hot water bath. The second in ice-water. The third in flask with dry-ice/acetone. The fourth in liquid nitrogen. NO 2 is brown and N 2 O 4 is colorless. The intensity of the brown color decreases as the temperature decreases.
Calculate Key for the reaction N2O4(g) → 2 NO2(g) from the AG°2 value determined using Table 6. °298 0.013 -1.9 0 79 O 6.7 .15 Table 6- Thermodynamic Data AH; (kJ/mol) sº (kJ/K mol) AGY (kJ/mol) at 25°C 0.0 -100.4 -127.1 -61.8 -124.4 -31.0 0.0 -1675.7 0.0 -858.6 -1216.3 Ag (S) AgBr(s) Agci (3) AgI (s) AgNO3 Ag20(s) Al(s) Al2O3(s) Ba(s) BaCl2(S) BaCO3(s) Bao(8) BaSO4(s) Br2(l) C(s) ccl.(l ...
ANALYSIS. 1) What macroscopic property did we observe to show that the reaction rate (forward or reverse) is constant? 2) What macroscopic property did we observe to show that temperature affects an equilibrium reaction?
Science. Chemistry questions and answers. Calculate Key for the reaction N2O4 (g) → 2 NO2 (g) from the AG°298 value determined using Table 6.
