The process of fermentation in winemaking turns grape juice into an alcoholic beverage. During fermentation, yeasts transform sugars present in the juice into ethanol and carbon dioxide (as a by-product).
Based on the effect of temperature on a reaction, a change in temperature affects the rate constant K.
Based on the Arrhenius equation, the y-intercept gives the value of ln A.
From the value of the slope, the value of Ea is 42.1 J/mol.
<h3>What is the effect of temperature on a reaction?</h3>
A change in the temperature of a reaction acts to increase the rate of reaction.
- Change in temperature has no effect on the ideal gas constant.
- Change in temperature has no effect on the activation energy.
- Change in temperature has no effect on the concentration of reactants.
- Change is temperature can either lower or increase the rate constant of a reaction.
- Change in temperature has no effect on the order of reaction.
According to the Arrhenius equation, the y-intercept gives the value of ln A.
From the graph; slope = -Ea/R
Ea = -slope/R
Where;
- Ea is activation energy
- R is molar gas constant = 8.314 J/K.mol
- Slope = -350 K
Ea = -(-350)/8.314
Ea = 42.1 J/mol
Learn more about Arrhenius equation at: brainly.com/question/17205915
Answer:
Slow combustion
Spontaneous combustion
Explosive combustion
Explanation:
-Slow combustion reactions: Occurs at low temperatures. Cellular respiration is an example.
-Spontaneous combustion reactions: Occurs suddenly without an outside heat source. The heat source is the result of oxidation.
-Explosive combustion reactions: Involves an oxidizing agent.
hopefully this helped :3
A saturated solution is one in which no more solute is able to dissolve in a given solvent at a particular temperature. Some amount of the solute is left undissolved in the solution.
Unsaturated solution has solute in lower proportions than required to form a saturated solution.
Supersaturated solution has solute in amounts greater than a saturated solution.
We can take the help of solubility curve in order to find out the amount of a salt required to prepare a saturated solution of that salt at a particular temperature.
The solubility of KI at 10
is 136 g/ 100 mL water
The solubility of 
at 
is 21 g/100 mL water.
The solubility of 
at is 80 g/100 mL water.
The solubility of NaCl at is 38 g/ 100 mL water.
So the correct answer will be KI, as it would need 136 g KI / 100 mL water to form a saturated solution at .So, if we have 80g KI/ 100mL water it would be an unsaturated solution.
