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WorksheetsTHERMOCHEMISTRY KSSM F3
Total questions: 12
Worksheet time: 24mins
Thermochemistry is
the study of heat changes when physical reactions occur.
the study of heat changes when chemical reactions occur.
the study of energy changes when physical reactions occur.
Diagram shows reaction between sodium and water, producing heat. The reaction is known as (a) reaction
A device that is suitable to determine exothermic or endothermic reaction is (a)
Exothermic reaction is where heat is __________ to the surrounding
taken in
absord
released
Endothermic reaction is when the heat is _________________ from the surrounding
taken in
released
taken out
Cake baking is
endothermic
exothermic
Dissolving ammonium salt in water will cause a ___________ in surrounding temperature
increase
higher
drop
constant
Respiration, bomb explosion and neutralisation of acid with alkali are the examples of _______________ reactions
exothermic
endothermic
precipitation
When sodium hydroxide is added to hydrochloric acid, the temperature reading on the thermometer is ______________ and the reaction name is __________________
decreasing
increasing
constant
neutralisation
titration
Based on the experiment, sodium hydroxide and ammonium chloride are the
responding variable
fixed variable
manipulated variable
Endothermic reaction that occurs in plants is (a)
Exothermic reaction that occurs in animals is (a)
