Question detail
What is the formula used to calculate heat energy transferred in calorimetry?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Energetics
Question
- A. q = mcΔT
- B. q = mΔT
- C. q = mcT
- D. q = mT
Answer
q = mcΔT
Explanation
The formula q = mcΔT is used to calculate the heat energy transferred, where q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.
Common mistake
Misunderstanding Enthalpy Change Definition
Students often confuse enthalpy change with heat transfer, failing to recognize that enthalpy change is defined under constant pressure and is a measure of the total energy change in a system during a reaction.
To correctly define enthalpy change, remember that it represents the heat content of a system at constant pressure. Use the formula ΔH = q_p, where ΔH is the enthalpy change and q_p is the heat transferred at constant pressure. Ensure to clarify that this definition applies specifically under constant pressure conditions.
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