4.1.2 - Endothermic reactions
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Practice Questions
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What is the definition of an endothermic reaction?
💡 Hint: Think about heat transfer in relation to the surroundings.
Name an example of an endothermic reaction.
💡 Hint: Consider processes where heat is absorbed.
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Interactive Quizzes
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What happens during an endothermic reaction?
💡 Hint: Think about energy flow in the reaction.
ΔH for an endothermic reaction is:
💡 Hint: Recall how ΔH is defined for different types of reactions.
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Challenge Problems
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Calculate the enthalpy change (ΔH) for an endothermic reaction where 250 grams of ice melts at 0 °C to become liquid water at 0 °C. Given that the enthalpy of fusion for ice is 334 kJ/kg.
💡 Hint: Convert grams to kilograms and use the given enthalpy of fusion value.
Discuss how temperature changes during an endothermic reaction can affect the surrounding environment, giving an example.
💡 Hint: Consider the applications of these reactions in practical scenarios.
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