Question

When determining the enthalpy change for a neutralization reaction involving NaOH and acid in the coffee-cup calorimeter, which assumption is NOT reasonable?

A.) The reaction of NaOH with HCl is stoichiometric and no side reactions occur.

B.) The specific heat of water increases with temperature.

C.) The specific heats of NaOH, acid, and the product of the reaction are the same as that of water.

D.) Even though some heat may be lost or gained from the coffee-cup and the environment, it is possible to obtain the final temperature by measuring the maximum after mixing.