A student obtained the following data for the decomposition of nitrosyl bromide at 10 °C. NOBr(g) →→→NO(g) + ½ Br₂(g) [NOBr], M seconds 7.74x10-² 0 3.87x10-2 21.9 (1) What is the half-life for the reaction starting at t=0 s? 21.9 Submit Answer What is the half-life for the reaction starting at t=21.9 s? 65.5 (2) Is the reaction zero, first, or second order? second ✓ 1.94x10-² 65.5 An error has been detected in your answer. Check for typos, miscalculations etc. before submitting your answer. Try Another Version S Does the half-life increase, decrease or remain constant as the reaction proceeds? increase (3) Based on these data, what is the rate constant for the reaction? .59 S 9.70x10-3 1 item attempt remaining 153 M-¹S-1 > Previous Next

View Policies Show Attempt History Current Attempt in Progress X Incorrect. -1 The catalyzed decomposition of ethanol at 327°C has a rate constant of 4,00 x 105 L mol¹1A graph of the reciprocal of ethanol concentration versus time gives a straight line. The chemical equation for the reaction at this temperature is C₂H₂OH(g)-CHg) + H₂O(g) If the initial concentration of ethanol is 0.023 mol L¹, how long will it take for the pressure to reach 1.4 atm at 327°C? i 60 eTextbook and Media Hint 1. The unit of the rate constant indicates the order of reaction. 2. Use partial pressures and the universal gas law to calculate moles and concentrations. 3. Set up a table showing initial molar concentrations and concentrations at time t Save for Later 45 hours 80 d F4 MacBook Air F6 Attempts: 4 of 15 used Submit Answer Assistance Used 8: DII 8² St

For the reactionNO2 (g)+CO(g)NO(g)+CO2​(g)calculate the order of the reaction with respect to the following reactants according to the following experimental data:  Experiment [NO2]0(M) [CO]0(M) Initial Rate, –ΔΔ[NO2]/ΔΔt (M/s) 1 0.263 0.826 1.44 × 10–5 2 0.263 0.413 1.44 × 10–5 3 0.526 0.413 5.76 × 10–5 See Periodic Table Order of the reaction with respect to NO2:          Order of the reaction with respect to CO:

The following is the experimental data for the rate of reaction: Q (g) + 2T (g) --> T2Q (g) in some conditions Experiment [Q](M) [T](M) V (M/second) 1 0,1 0,1 0,0125 2 0,2 0,1 0,05 3 0,1 0,2 0,1 if [Q] and [T] are changed to 0.5M each, then the reaction rate (v) at that time is?