Answer:
Rate of reaction = 2.0 M/s
Explanation:
2H2O2(g) --> 2H2O(g) + O2(g)
Rate of formation of H2O = 2.0 M/s
Rate of reaction can be measured using multiple techiques and parameters like volume, pressure etc.
Among these techniques is the measurement of appearance of products.
This means we have;
Rate of reaction = Rate of appearance of product
Hence;
Rate of reaction = 2.0 M/s
In order to solve this problem you need to consider the states of matter and the amount of products.
If there are more products than reactants than there is an increase in entropy.
States of matter: increasing the motion of particles increases entropy.
Molecular movement:
Solid<Liquid<Gas
Changing states of matter from left to right would be an increase in entropy.
Changing states of matter from right to left would be a decrease in entropy
The answer is number 3
Iron. Well actually steel, but iron is the closest.
The amount of energy released is calculated by the product of heat of fusion and mass.
The formula of amount energy released is given by:
(1)
Here,
q is amount of energy released
L is heat of fusion (
)
m is mass of water
Put all the given values in equation (1)
≅ 
Thus, amount of energy released is 
