Energy in Chemical Reactions (Junior Cert Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What temperature change occurs during an exothermic reaction?
What temperature change occurs during an exothermic reaction?
Temperature rises
What happens to the surroundings during an endothermic reaction?
What happens to the surroundings during an endothermic reaction?
Temperature drops
Which of these is an example of an exothermic reaction?
Which of these is an example of an exothermic reaction?
Combustion of fuels
Which process is an endothermic reaction?
Which process is an endothermic reaction?
Photosynthesis
What is activation energy?
What is activation energy?
Minimum energy for a reaction to occur
What is a catalyst?
What is a catalyst?
Speeds up reaction, not used up
How does increasing temperature affect reaction rate?
How does increasing temperature affect reaction rate?
Increases rate
How does decreasing particle size affect reaction rate?
How does decreasing particle size affect reaction rate?
Increases rate
In an exothermic reaction energy profile, what is the sign of ?
In an exothermic reaction energy profile, what is the sign of ?
Negative
How does a catalyst affect activation energy?
How does a catalyst affect activation energy?
Lowers it