oal gasification produces an easily-transportable, clean-burning combination of

Question

oal gasification produces an easily-transportable, clean-burning combination of carbon monoxide and hydrogen from coal by reacting it with steam, like this C (s)+ H2O(g) CO(g)+H2(g) Suppose an engineer decides to study the rate of this reaction. He prepares four reaction vessels with 104.7 g of solid carbon and 292 g of steam each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1' next to the vessel in which the engineer can reasonably of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. volume temperature initial rate of 400. °CI B 50 LI 5.0 L 150LI .? 390. "? 380, sc MacBook A

Explanation / Answer

Mathematically,

rate = ?concentration / ?time

But, when we increase the temperature of one of the reactants in a chemical reaction, this increases the particles kinetic energy, making them move much faster.This also increases the chance of a more successful collision and the rate of reaction.

Now, coming to this particular question, few things given here are constant like,

So, here the rate deciding factor is the temperature.

Decreasing order of initial reaction rate is :

Vessel Temperature(oC) Order B 40 1 C 39 2 D 38 3 A 35 4

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