9.2Calorimetry
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Study this section
Written from the section, each card quoting the span it came from. The ones you miss come back sooner.
What this needs
Learn these first — this section will not make sense without them.
Nothing in the algebra book is a prerequisite for this section.
What this touches
Algebra that turns up here. Not a blocker, but this is where you will see it used.
Every calorimetry problem hinges on qreaction = −qsolution — a bare negative sign that is the entire content of the energy-conservation argument; drop it and an exothermic reaction's heat comes out with the wrong sign.
- Applies2.3Models and Applications
Calorimetry problems chain q = c×m×ΔT for two substances into one equation, e.g. (c×m×(Tf−Ti))rebar = −(c×m×ΔT)water, then isolate the one unknown temperature buried inside a product on one side — a multi-term literal equation, not just a single formula.