21.Consider the reaction:   3A →  4C Initially, and at some fixed temperature, the reaction proceeds at such a rate that 200

Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are easily decomposed. Hexanitroethane, C₂(NO2)6, decomposes according to the equation C₂(NO2)6→ 2NO2 + 4NO+2CO2 The reaction in CCl4 solvent is first order with respect to C₂(NO₂)6. At 73.8 °C, k = 0.000330 s¹ and at 103.0 °C, k=0.0189 s ¹. (a) What is the half-life of C₂(NO2)6 at 73.8 °C? i eTextbook and Media (b) What is the half-life of C₂(NO₂)6 at 103.0 °C? i seconds (c) If 0.100 mol of C₂(NO2)6 is dissolved in CCl4 at 73.8°C to give 1.00 L of solution, what will be the C₂(NO2)6 concentration after 50.0 minutes? i M (e) What is the rate constant at 154.8 °C? i seconds (d) What is the value of the activation energy of this reaction, expressed in kilojoules? kJ/mol 51

Consider the same reaction carried out two more times, both at the same condition(including concentration and temperature), but where the volume of the reaction is doubled in the second reaction. Since the concentrations are the same in both cases, the 2nd has twice the quantity of gases. How do those two rates of reaction compare to each other? Please compare using units of moles/(L•min) and separately using units of moles/min.

Consider the following general reaction for which gases A and B are mixed in a constant volume container: A(g) + B(g) -> C(g) + D(g) Match what happens to the rate of the reaction under the following changes: (consider each change separately) v all of gas B is removed from the container more gas A is added to the container the temperature of the container is increased there is no change to the reaction rate ya catalyst is added to the container I. the reaction proceeds at a faster rate v gas D is also added to the container the reaction proceeds at a slower rate II. some of gas B is removed from the container Iy the reaction does not proceed at all the volume of the container is increased