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The units for entropy are joules per kelvin (J K-1)

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What are the units for enthalpy and how are they typically represented in thermodynamic calculations?

The units for enthalpy are joules (J) or kilojoules (kJ). In thermodynamic calculations, enthalpy is typically represented using the symbol "H" and expressed in these units.


What has the author D C Hickson written?

D C. Hickson has written: 'Pressure-Enthalpy diagram for refrigerant 12 (dichlorodifluoromethane CF2C12)' 'Enthalpy-entropy diagram for steam: SI [units]'


Why you measure enthalpy in H instead of H?

The total enthalpy of a system is called "H." That stands for "total enthalpy." It is not a measure of enthalpy. Enthalpy is measured in the SI or metric system in joules (abbreviated as J) or in customary units such as British Thermal Unit (BTU) or calories (cal).


What is a correct description of the enthalpy of a reaction?

The enthalpy of a reaction does not depend on the intermediate reactions.


What are some common challenges students face when solving chemistry enthalpy problems?

Some common challenges students face when solving chemistry enthalpy problems include understanding the concept of enthalpy, correctly identifying the type of reaction, calculating the change in enthalpy, and applying the correct formulas and units. Additionally, students may struggle with interpreting and manipulating the given data and determining the appropriate approach to solving the problem.


How do you calculate the enthalpy change of a reaction?

To calculate the enthalpy change of a reaction, subtract the total enthalpy of the reactants from the total enthalpy of the products. This difference represents the enthalpy change of the reaction.


What is molar enthalpy change?

Molar enthalpy change, also known as molar enthalpy of reaction, is the amount of heat energy released or absorbed during a chemical reaction per mole of a substance. It is usually expressed in units of kJ/mol. The molar enthalpy change can be positive (endothermic) if heat is absorbed or negative (exothermic) if heat is released during the reaction.


What does the enthalpy vs temperature graph reveal about the relationship between enthalpy and temperature?

The enthalpy vs temperature graph shows how enthalpy changes with temperature. It reveals that as temperature increases, enthalpy also tends to increase. This indicates a positive relationship between enthalpy and temperature.


What is the difference of enthalpy of formation and the enthalpy of combustion?

Enthalpy of combusion is energy change when reacting with oxygen. Enthalpy of formation is energy change when forming a compound. But some enthalpies can be equal.ex-Combusion of H2 and formation of H2O is equal


What is the amount of energy required to change a material from a liquid to a gas?

Latent Heat of Evaporation, or Evaporation Enthalpy. It is given in units of energy over unit of mass, i.e., KJ/Kg.


How do you make a sentence for enthalpy?

Enthalpy is a thermodynamic property of a thermodynamic system.


How do you calculate the change in enthalpy of solution?

To calculate the change in enthalpy of solution, subtract the enthalpy of the products from the enthalpy of the reactants. This difference represents the heat absorbed or released during the process of dissolving a solute in a solvent.