The reaction between fluorine and chlorine dioxide, F2(g) + CIO2(g) → 2FCIO2(g) Proceeds according to the following rate Law: r = k · PF2 · Pci02 where k = 0.0489 bar1 s1. In an isolation experiment, the initial partial pressures are: Pr2(t = 0) = 6.854 bar and Pcio2(t = 0) = 0.02864 bar. (a) Calculate the effective rate constant keff Ukeff = (b) Compute the pressure of chlorine dioxide in bar after 5.66 s. Pcio2(t = 5.66s) = bar (c) How long will it take for the pressure of chlorine dioxide to drop to 0.01121 bar? t

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.