Question

a.)For the gas phase decomposition of hydrogen iodide at 700 K 2 HI---->H2 + I2 the...

a.)For the gas phase decomposition of hydrogen iodide at 700 K

2 HI---->H2 + I2

the following data have been obtained: [HI], M 0.530 0.187 0.114 8.16×10-2 time, s 0 48.0 96.0 144 The average rate of disappearance of HI over the time period from t = 48.0 s to t = 96.0 s is M s-1.

b.)For the gas phase decomposition of phosphine at 120 °C

4 PH3(g)----->P4(g) + 6 H2(g)

the following data have been obtained: [PH3], M 8.04×10-2 4.69×10-2 2.73×10-2 1.59×10-2 time, s 0 30.0 60.0 90.0 The average rate of disappearance of PH3 over the time period from t = 60.0 s to t = 90.0 s is M s-1.

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