coffee-cup calorimeter

(noun)

An example of constant-pressure calorimeter.

Related Terms

  • constant-pressure calorimeter
  • adiabatic

Examples of coffee-cup calorimeter in the following topics:

  • Constant-Pressure Calorimetry

    • A simple example of a constant-pressure calorimeter is a coffee-cup calorimeter, which is constructed from two nested Styrofoam cups and a lid with two holes, which allows for the insertion of a thermometer and a stirring rod.
    • As such, the outer cup is assumed to be a perfect insulator.
    • A student heats a 5.0 g sample of an unknown metal to a temperature of 207 $^\circ$C, and then drops the sample into a coffee-cup calorimeter containing 36.0 g of water at 25.0 $^\circ$C.
    • The walls of the coffee-cup calorimeter are assumed to be perfectly adiabatic, so we can assume that all of the heat from the metal was transferred to the water:
    • A styrofoam cup with an inserted thermometer can be used as a calorimeter, in order to measure the change in enthalpy/heat of reaction at constant pressure.
Subjects
  • Accounting
  • Algebra
  • Art History
  • Biology
  • Business
  • Calculus
  • Chemistry
  • Communications
  • Economics
  • Finance
  • Management
  • Marketing
  • Microbiology
  • Physics
  • Physiology
  • Political Science
  • Psychology
  • Sociology
  • Statistics
  • U.S. History
  • World History
  • Writing

Except where noted, content and user contributions on this site are licensed under CC BY-SA 4.0 with attribution required.