AP Chemistry · Topic 6.3

Heat Transfer and Thermal Equilibrium Practice

Part of Thermodynamics.(ENE-2.C)

Practice questions

3

Want a predicted score for the whole AP CHEM exam? Take the 20-question diagnostic and Lumi will plan the rest.

Take diagnosticarrow_forward Practice all 6.3

Sample questions

3 of 3 — sign in to practice the rest with adaptive difficulty and mastery tracking.

Sample 1difficulty 1/5
$The "system" is$
- A
  $Always exothermic$
- B
  $The reactants and products under study$
  check_circle
- C
  $Everything outside the reaction$
- D
  $Only the container$
Why
$System = the part being studied; surroundings = everything else.$
View full solution & statsarrow_forward
Sample 2difficulty 2/5
$A reaction beaker becomes warm. The reaction is$
- A
  $Exothermic$
  check_circle
- B
  $Athermal$
- C
  $Cannot tell$
- D
  $Endothermic$
Why
$Heat flows from system into surroundings (the beaker contents) \to exothermic.$
View full solution & statsarrow_forward
Sample 3difficulty 3/5
$Hot metal at 80 °C dropped into water at 20 °C. At equilibrium, q_metal + q_water =$
- A
  $Always negative$
- B
  $Cannot say$
- C
  $Always positive$
- D
  $0 (in an isolated system)$
  check_circle
Why
$Energy conservation: heat lost by metal = heat gained by water \to sum = 0.$
View full solution & statsarrow_forward

Predict my AP scorearrow_forward

auto_awesomeAll Tools question_answerHomework Q&A menu_bookAP & SAT Prep timelineLearn Mode