SC-1112
Neutralisation
Lower Sec Science · Secondary 2 · Hard · Neutralisation
A student adds dilute hydrochloric acid to sodium hydroxide solution. The temperature of the mixture increases. Which statement best explains this observation?
- Neutralisation releases heat, so the reaction is exothermic.
- Neutralisation absorbs heat, so the reaction is endothermic.
- The temperature rises because the acid becomes more concentrated.
- The temperature rises because gas bubbles trap heat inside the liquid.
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