3 years ago

Which type of energy would most likely create the worst environmental disaster from an accident or spill?

Chemistry

1 answer:

rewona [7]3 years ago

6 0

Answer:

nuclear energy

Explanation:

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3 years ago

For the gas phase decomposition of phosphine at 120 °C, the rate of the reaction is determined by measuring the appearance of H2

Dmitry_Shevchenko [17]

Answer:

Rate = 1.09*10^-3 (mol H2/L)/s

Explanation:

Given:

Initial concentration of H2, C1 = 0 M

Final concentration of H2, C2 = 0.101 M

Time taken, t = 93.0 s

To determine:

The rate of the given reaction

Calculation:

The decomposition of PH3 is represented by the following chemical reaction

$4 PH3(g)\rightarrow P4(g) + 6 H2(g)$

Reaction rate in terms of the appearance of H2 is given as:

$Rate = +\frac{1}{6}*\frac{\Delta [H2]]}{\Delta t}$

$Rate = +\frac{1}{6}*\frac{C2[H2]-C1[H2]}{\Delta t}$

Here C1(H2) = 0 M and C2(H2) = 0.101 M

Δt = 93.0 s

$Rate = \frac{(0.101-0.0)M}{93.0 s} =1.09*10^{-3} M/s$

Since molarity M = mole/L

rate = 1.09*10^-3 (mol H2/L)/s

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