temperature changed practical Flashcards
if yiu are investigating the effect of a particular factor on the temp change what are the possible variables
tupe of acid, concentration of acid, volume of acid, type of metal, surface area of metal, mass of metal
when investigating the effect of a particular factor on temperature change what will be your dependent variable
tenp chnage
how do you determjne temp change
measure the star and end temp, take the start temp away from the end temp
why should a polystrene cup be used when investigating temp change
plystrene is a good insulator and reduces energy transfers with the surroundings
why should plystrene cup be used when investigating a tenp change
reduces energy transfer with the surroundings
how can you use temp change to determine the reactivity of some metals
add the metals to a controlled volume of acid in a polystrene cup and record the temp change, the larger the temp change the more reactive the metal
what equipment would you use to measure the volume of your solutions
measuring cylinder
if youwere adding a sold to the acid, what ewuipment would you use to measure mass
balance
how would yiu know if the reaction is endothermic
the temp would decrease
what is an endothermic reaction
a reaction that transfers energy from the surroundings
what is an exothermic reaction
a reaction that transfers energy to the surroundings
how would you know if the reaction was exothermic
the temp would increase
