Which of the following will increase reaction rate by increasing the value of th
ID: 877042 • Letter: W
Question
Which of the following will increase reaction rate by increasing the value of the rate constant, k?
Increasing reactant concentration
Increasing temperature
Increasing the surface area of solid reactants
Removing products from the reaction mixture
All of these
2.
When comparing a 1 m NaCl solution to that of pure water:
The 1 m NaCl solution has a higher boiling point and the higher freezing point.
The 1 m NaCl solution has a higher boiling point and a lower freezing point.
The 1 m NaCl solution has a lower boiling point and a higher freezing point.
The 1 m NaCl solution has a lower boiling point and a lower freezing point.
They both have the same boiling point and freezing point.
Increasing reactant concentration
Increasing temperature
Increasing the surface area of solid reactants
Removing products from the reaction mixture
All of these
2.
When comparing a 1 m NaCl solution to that of pure water:
The 1 m NaCl solution has a higher boiling point and the higher freezing point.
The 1 m NaCl solution has a higher boiling point and a lower freezing point.
The 1 m NaCl solution has a lower boiling point and a higher freezing point.
The 1 m NaCl solution has a lower boiling point and a lower freezing point.
They both have the same boiling point and freezing point.
Explanation / Answer
1) Increasing temperature
=> Rate constant depends only on the temperature. It increases with increase in temperature.
2) The 1 m NaCl solution has a higher boiling point and a lower freezing point.
=> From the colligative properties, By the addition of nonvolatile solute to a pure solvent boiling point increases and freezing point decreases ( Elevation in boiling point, Depression in freezing point respectively).
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