1 / 11

Thermochemistry Problems on Specific Heat and Temperature Changes

Explore a series of thermochemistry problems focusing on calculations involving specific heat, heat transfer, and temperature changes. This guide includes practical examples such as determining the specific heat of a substance based on mass and heat absorbed, calculating temperature changes in ice and metals, and analyzing heat energy requirements for temperature adjustments. Ideal for students looking to practice and enhance their understanding of calorimetry and thermodynamic principles.

kirima
Télécharger la présentation

Thermochemistry Problems on Specific Heat and Temperature Changes

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. White Board 1. Octet Rule

  2. Thermochemistry Problemsq = m T Cp • Set up the following problems • q = • M = • T = • Cp =

  3. What is the specific heat of a substance that has a mass of 25.0 grams and requires 525.0 calories to raise the temperature by 15 oC ?

  4. 2. Suppose 100.0 g of ice absorbs 1255 J of heat. What is the corresponding temperature change? Cp of ice is 2.1J /(g X oC)

  5. 3. How many joules of heat energy are required to raise the temperature of 100.0 g of aluminum by 120.0 oC ? The specific heat of aluminum is 0.90 J/(g X oC )

  6. 4. A 20 gram sample of an unknown metal requires 500 calories of heat to raise the temperature 100 oC. What is the specific heat of the metal?

  7. 5. A strip of metal weighing 30 grams looses 400 Joules of heat. What is the temperature change when the specific heat is 0.420 J/ (g X oC) ?

  8. 6. What is the mass of substance that looses 500 c of heat while changing temperature from 30 oC to 10 oC. Use .5 c/ (g X oC ) as the specific heat.

  9. 7. A 50 gram sample is heated from 20 oC to 50 oC. How many Joules of heat are absorbed? Use 2.0 c / (g X oC) as specific heat.

  10. 8. What is the final temperature when a 100g sample of a metal with a specific heat of .30 J/ (g X oC) looses 5000 Joules of heat. The initial temperature is 2000 oC

More Related