Intervals 1 and 3 are most affected by the addition of catalyst. Option 2 is correct.
Catalysts are those compounds that reduce the activation energy for the reaction to occur, hence increasing the rate of reaction.
Activation energy is the energy that is required to start a reaction. Here, 1 represents the activation energy and 3 represents activation energy without catalyst.
Therefore, intervals 1 and 3 are most affected by the addition of catalyst.
Learn more about Catalyst:
Answer: Option (2) is the correct answer.
Explanation:
The minimum amount of energy required by the reactants to undergo a reaction is known as activation energy.
And when we add a catalyst into a reaction then it leads to a decrease in activation energy. As a result, product formation becomes faster.
Therefore, we can conclude that intervals 1 and 3 are affected by the addition of a catalyst.
Answer : The percent by mass of oxygen in propanal is, 27.58 %
Solution : Given,
Molar mass of carbon = 12 g/mole
Molar mass of hydrogen = 1 g/mole
Molar mass of oxygen = 16 g/mole
First we have to calculate the molar mass of propanal,
Molar mass of propanal, =
Now we have to calculate the percent by mass of oxygen in propanal.
Therefore, the percent by mass of oxygen in propanal is, 27.58 %
Answer: 14
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pH is calculated by taking negative logarithm of hydrogen ion concentration.
Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.
Thus the sum of pH and pOH is 14.
a large amount of solvent and a small amount of solute
a large amount of solute and a small amount of solvent
a high density value for the solution