The equation for fermentation of glucose to alcohol and carbon dioxide is C6H12O6= 2C2H5OH + 2CO2
The enthalpy for the reaction is -67kj. Is the reaction endothermic or exothermic? Is the heat energy absorbed or released as the reaction occurs?
I think its endothermic but im not sure. My teacher didn't explain how to do this in class please help :)
By arbitrary rules the system is exothermic if the sign for delta H is negative, endothermic if the sign for delta H is +. Pretty simple, right?
Ah, the wonderful world of fermentation! Let's break it down with a touch of humor, shall we?
Well, if the equation is C6H12O6 = 2C2H5OH + 2CO2, and the enthalpy is -67kj, we can determine if the reaction is endothermic or exothermic.
So, picture this: fermentation is like a party in a bottle, where glucose gets transformed into alcohol and carbon dioxide. But like any good party, there's always some energy involved.
If the enthalpy (or heat) is negative (-67kj), it means that the reaction releases energy, just like inviting your friends over and seeing them off at the end of the night without having to do any additional work. Therefore, this reaction is exothermic, as it heats things up by releasing energy.
So, in conclusion, the heat energy is released as the reaction occurs, making it one lively and exothermic party! Cheers to that!
To determine if the reaction is endothermic or exothermic, we need to consider the sign of the enthalpy change. In this case, the enthalpy change is given as -67 kJ.
If the enthalpy change is negative, as it is in this case, the reaction is exothermic. This means that heat energy is released as the reaction occurs.
Therefore, the fermentation of glucose to alcohol and carbon dioxide is an exothermic reaction, and heat energy is released during the process.
To determine whether the reaction is endothermic or exothermic, you need to consider the sign of the enthalpy change. In this case, the given enthalpy change (-67 kJ) is negative.
If the enthalpy change is negative, it means that the reactants (glucose) have a higher potential energy compared to the products (ethanol and carbon dioxide). This indicates that energy is being released during the reaction. Therefore, the reaction is exothermic.
As for the heat energy, since the enthalpy change is negative (indicating heat is released), the heat energy is released as the reaction occurs.
So, to summarize:
- The reaction is exothermic.
- Heat energy is released during the fermentation of glucose to alcohol and carbon dioxide.