Energy%20Ws9_Reviewpdf

Energy%20Ws9_Reviewpdf - Name Energy and Thermochemistry...

This preview shows pages 1–2. Sign up to view the full content.

Name _______________________________ Date ______________ Period _________ Energy and Thermochemistry Review 1. Make the following conversions a. 8500 cal into Food Calories b. 1.8 kJ into joules c. 47.85 cal into joules d. .209 kJ into calories e. 750 J into kJ f. 358.9 cal into kJ 2. Calculate the heat in kcal that is absorbed when 1.00 L of water is heated from 18.0°C to 85.0°C? 3. A 195 g aluminum engine part at an initial temperature of 3.00°C absorbs 4.00 kcal of heat. What is the final temperature of the part? The specific heat capacity of Aluminum = 0.21 cal/g o C. 4. What quantity of heat is needed to raise the temp of 500.0 g of Cu from 20.0°C to 50.0°C? The specific heat capacity of Copper = 24.5 J/mol°C (you must convert this to J/g°C ) 5. 40.0 g of solution has its temp. raised from 25°C to 50°C by addition of 4,067 J of heat. What is the specific heat in J/g o C for the solution? Compare this value to the specific heat of water. 6.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/10/2009 for the course CHEM 1111 at Colorado.

Page1 / 3

Energy%20Ws9_Reviewpdf - Name Energy and Thermochemistry...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online