A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

A 40.6 g sample of iron metal is heated and put into 100 g of water at 19.7 degrees Celsius in a calorimeter. If the final Temperature of the iron sample and the water is 24.3 degrees Celsius, what was the temperature of the iron sample when it was placed in the water?(I'll give a medal)

  • This Question is Open
  1. Zale101
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \(\LARGE -q_{~lost ~by ~iron} = q_{~gained~by~ water} \) \(~~~~~~~~~\large \color{purple}{-m*C*\Delta T =m*C*\Delta T} \)

  2. Zale101
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    m represents the mass, C represents the specific heat capacity, delta T represents the temperature difference/change Keep in mind that \(\large \Delta T=T_{final}−T_{initial}\) You are looking for T initial of iron and the rest is giving to you. Plug everything and solve T initial of Fe algebraically. −m∗C∗ΔT=m∗C∗ΔT \(\large −m_{Fe}∗C_{Fe}∗(T_f-\color{red}{T_i})=m_{H_2O}∗C_{H_2O}∗(T_f-T_i)\)

  3. Zale101
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Mass is always in grams

  4. Zale101
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    and again, it 's already been given to you for both iron and water :)

  5. Zale101
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Specific heat capacity should be given to you specific heat C. for iron = 0.44 J/g°C specific heat C. for water = 4.18 J/g°C

  6. Zale101
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Temperatures are already given to you, expect for T initial for iron and that's what you are solving for.

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.