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Calorimetry Practice

Ten calorimetry word problems require students to apply q = -q to solve for final temperature, unknown mass, or unknown initial temperature, with a fully worked answer key.
Grades
Grades 8–12, Middle School, High School
File type
Microsoft Word
Editable
Yes

Updated May 27, 2022

Subject
Science, Chemistry
Topic
chemistry practice, temperature
Editable
Yes

About this resource

What's inside this resource

This resource includes 10 practice problems which cover calorimetry calculations that use the formula -mcΔt = mcΔt.

Students are expected to calculate for the following variables:

- temperature

  • - mass

  • - specific heat, etc.

The questions can be edited to meet the needs of your lesson, though it includes answer and solutions to problems presented.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Apply the calorimetry formula q = -q to solve for an unknown final temperature when two substances are mixed

  • Rearrange the calorimetry formula to solve for an unknown mass or unknown initial temperature

  • Use a calculated specific heat value to identify an unknown metal

Teaching tips

  • Since the file is editable, adjust the numbers or substances in individual problems to create a fresh version for a retake or a different class period

  • Problem 7 asks students to identify an unknown metal from its calculated specific heat -- consider pairing it with a specific-heat reference table if students haven't memorized common values

Skills covered

  • Applying and rearranging the calorimetry formula -- each problem requires setting up q = -q (in the form -mcΔt = mcΔt) and solving algebraically for whichever variable (final temperature, mass, or initial temperature) is unknown.

  • Multi-step algebraic solving -- the answer key shows each problem reduced to a single linear equation in one unknown and solved step by step.

Good to know

Questions teachers ask about this resource

Does the file include worked-out solutions, not just final answers?

Yes -- pages 3-4 show the full algebraic setup and step-by-step solving for all 10 problems, not just the final numeric answers.

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Curriculum

Standards, concepts & topics

Standards

  • HSA-CED.A.4 — Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations. For example, rearrange Ohm’s law V = IR to highlight resistance R.
  • HSA-REI.B.3 — Solve linear equations and inequalities in one variable, including equations with coefficients represented by letters.

Core concepts

  • Calorimetry

  • Specific heat

  • Heat transfer equations

  • Algebraic problem solving

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