Which of the following changes will slow down a reaction?
1 answer:
Answer: Option (d) is the correct answer.
Explanation:
According to rate law, rate of a reaction is directly proportional to the concentration of reactants.
For example,
then, Rate = k [C]
Therefore, when we decrease the concentration of the reactant then there will also be decrease in the rate of a reaction.
Whereas when we increase the temperature then there is increase in rate of reaction due to increase in kinetic energy of molecules.
Thus, we can conclude that decreasing the concentration of the reactant will slow down a reaction.
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The object with dimensions and with mass 250.6 g will have a density equal to
.
<u>Given:</u>
Dimensions of the object =
length = l = 5.54 cm
width = w = 10.6 cm
height = h = 199 cm
Mass of the object = m = 250.6 g
<u>Formula:</u>
The relation between density, mass and volume of any object is given by:
Since volume of an object with length (l), width (w) and height (h) [assuming a rectangular object] can be defined as,
Density of the object is