Write a balanced thermochemical equation

While numerically correct, your answer has the wrong sign.


In the combustion of methane example, the enthalpy change is negative because heat is being released by the system. That is incorrect. If we took 1 mol of liquid water and allowed it to evaporate, 44 kJ would be absorbed.

explain the meaning of this thermochemical equation

Studies of thermochemistry can be very useful in getting reliable information for making these important choices. The reaction is exothermic and thus the sign of the enthalpy change is negative.

given the thermochemical equation

Do we use gas, oil, electricity, wood? What is the enthalpy change when 3. Since the reaction isn't highly exothermic like the combustion of CH4we find it hard to associate with a release of energy.

Thermochemical equation calculator

Thus the liquid water has 6. Rules for Thermochemical Equations. Write your answer in the space below. In the reaction in Eq. A thermochemical equation is a chemical equation that includes the enthalpy change of the reaction. Condensation of 1 mol of water vapor, on the other hand, gives off exactly the same quantity of heat. Because the heat is absorbed by the system, the The correct answer is kJ. A process with a negative DH is called exothermic.
Rated 9/10 based on 17 review
Rules for Thermochemical Equations