RP 4- temperature changes Flashcards
1
Q
what is an exothermic reaction ?
A
energy released to the surroundings- increasing the surrounding temperature
2
Q
what is an endothermic reaction ?
A
energy taken in from the surroundings- surrounding temperature get colder
3
Q
what happens to the temperature when you add more sodium hydroxide into the hydrochloric acid ?
A
the temperature increases until it reaches the maximum and then it starts to decrease as there is not enough HCL acid to react
4
Q
what do you use to stop heat from escaping ?
A
use a polystyrene cup
