Exothermic and Endothermic Reactions (VCE SSCE Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of reaction occurs when a fuel reacts with oxygen gas to release energy?
What type of reaction occurs when a fuel reacts with oxygen gas to release energy?
Combustion reaction
What is the formula for calculating enthalpy change ()?
What is the formula for calculating enthalpy change ()?
What is the sign of for an exothermic reaction?
What is the sign of for an exothermic reaction?
Negative
What is the sign of for an endothermic reaction?
What is the sign of for an endothermic reaction?
Positive
For which types of reactions does an activation energy barrier exist?
For which types of reactions does an activation energy barrier exist?
Both exothermic and endothermic
How many joules are in 5 kJ?
How many joules are in 5 kJ?
5000 J
For , kJ. How much energy is released?
For , kJ. How much energy is released?
890 kJ
In an energy profile for an exothermic reaction, where are products relative to reactants?
In an energy profile for an exothermic reaction, where are products relative to reactants?
Lower energy level
In exothermic reactions, how does bond formation energy compare to bond breaking energy?
In exothermic reactions, how does bond formation energy compare to bond breaking energy?
Formation releases more than breaking needs
How does the total chemical energy of products compare to reactants in endothermic reactions?
How does the total chemical energy of products compare to reactants in endothermic reactions?
Products have greater energy