. From your data, discuss how changes in the hydrogen ion concentration [H ] in the solution cause the color of the indicator to change. Discuss why the reaction must come to equilibrium before the final color of the solution is seen.

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.

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