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If the enthalpy of reaction is -100 kJ, what can be said about the reaction?
If the enthalpy of reaction is -100 kJ, what can be said about the reaction?
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Practice Questions
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Q1
If the enthalpy of reaction is -100 kJ, what can be said about the reaction?
It absorbs heat
It releases heat
It is at equilibrium
It requires energy input
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A negative enthalpy change indicates that the reaction releases heat, making it exothermic.
Questions & Step-by-step Solutions
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Q
Q: If the enthalpy of reaction is -100 kJ, what can be said about the reaction?
Solution:
A negative enthalpy change indicates that the reaction releases heat, making it exothermic.
Steps: 4
Show Steps
Step 1: Understand what enthalpy of reaction means. It is the heat content change during a chemical reaction.
Step 2: Look at the value of the enthalpy change. In this case, it is -100 kJ.
Step 3: Recognize that a negative value means heat is being released.
Step 4: Conclude that since heat is released, the reaction is exothermic.
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