[positiveion]

A student added 100cm^3 of a 2.0 moldm^-3 solution of hydrochloric acid to 100cm^3 of 2.0 mol dm^03 sodium hydroxide solution.

I've been asked 2 questions regarding this.

The first one is calculate the heat given out in the reaction and the second one what is the enthalpy of neutralization for the reaction.

I don't know what the difference between the 2 questions is.

For the first one i did the energy = mass * spec heat capcity * temp change. so because this is a neutralization reaction shouldn't the "enthalpy change of neutralization" be the same as the enthalpy change? im a bit confused

thanks

[dufengtao]

The value of heat given out from neutralization reaction is positive, but it's enthalpy change is a negative one. does this answer fit to you?