How To Find Enthalpy Of Solution

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The theory behind determining the molar Enthalpy of a solution

The molecules or ions that make up a solid solute exist in a highly ordered state called a lattice. You may already be familiar with representations of ionic compounds in which positive ions (cations) and negative ions (anions) are arranged in a crystal lattice held together by electrostatic attraction known as bonding. ionic bond. The amount of disorder, or randomness, in a system is called its entropy. A lattice is highly ordered, that is, the particles that make up the lattice are in a low disordered state. This is called the low entropy state. Read: how to find the enthalpy of a solution When this solute dissolves in a solvent, particles such as ions must be removed from the crystal lattice and each solute particle must then be completely surrounded by solvent molecules. The solute particles in the solution are in constant motion and are distributed more or less randomly in the solution, so the disorder has increased compared to when they were part of the crystal lattice. The solute particles in solution are said to be in a higher state of entropy than the solute particles that make up the crystal lattice. Read more: how to connect solar panels to light bulbs as happens in two steps: The table below lists the molar enthalpy (heat) values of solutions for some common salts in water at 25°C. 4

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