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Sagot :
The change in temperature is an indicator of a change in enthalpy in
chemical reaction.
The assumption that is not reasonable is; The specific heat of water
increases with temperature.
Reason:
The possible options in the question are;
A stoichiometric reaction takes place between NaOH and the acid while there are no side reaction.
Some heat is accepted as being lost or gained from the environment, the final temperature can be taken as given by the maximum temperature of the mixture.
The product of the reaction, NaOH, and the acid have the same specific heat as that of water.
The specific heat of water increases with temperature.)
Solution:
When determining the enthalpy change in a reaction, the one of the
reactants is added in excess of the other reagent so that a complete
reaction occurs based on the amount of the limiting reagent.
Some assumptions made during the measurement include;
- The density of the solution is the same as that of water.
- The specific heat capacity of the solution and water are the same.
- No heat loss occurs from the equipment to the surrounding or atmosphere during the reaction.
Therefore;
- The assumption that is not reasonable is that; The specific heat of water increases with temperature.
Learn more about measuring enthalpy change here:
https://brainly.com/question/16610132
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