Rubbing alcohol is used to disinfect wounds and surfaces. It has the following properties: Melting point: -88.5C Boiling point: 82.3C Latent heat of fusion: 8.94 x 104 J/kg Latent heat of vaporization: 6.66 x 105J/kg Specific Heat Capacities: Solid: 1.95 x 10³ J/kg C Liquid: 2.37 x 10³ J/kg C Vapor: 2.74 x 10³ J/kg C a) You decide to heat up 250 g of rubbing alcohol in a pot, after having cooled it to -5C in the freezer. How much energy will it take to heat the rubbing alcohol to 90C? [4] Include a heating curve graph in your submitted solutions [1] b) You let the 250 g of rubbing alcohol cool in the pot, then add a 50 g piece of copper at -2C and close the lid. After leaving the lid closed for awhile, you measure the final temperature as 41C. What was the initial temperature of the rubbing alcohol? (specific heat of copper is 390 J/kg°C) [3] For your answers below enter 3 significant digits ONLY (no units here; include them instead in full solutions).
Rubbing alcohol is used to disinfect wounds and surfaces. It has the following properties: Melting point: -88.5C Boiling point: 82.3C Latent heat of fusion: 8.94 x 104 J/kg Latent heat of vaporization: 6.66 x 105J/kg Specific Heat Capacities: Solid: 1.95 x 10³ J/kg C Liquid: 2.37 x 10³ J/kg C Vapor: 2.74 x 10³ J/kg C a) You decide to heat up 250 g of rubbing alcohol in a pot, after having cooled it to -5C in the freezer. How much energy will it take to heat the rubbing alcohol to 90C? [4] Include a heating curve graph in your submitted solutions [1] b) You let the 250 g of rubbing alcohol cool in the pot, then add a 50 g piece of copper at -2C and close the lid. After leaving the lid closed for awhile, you measure the final temperature as 41C. What was the initial temperature of the rubbing alcohol? (specific heat of copper is 390 J/kg°C) [3] For your answers below enter 3 significant digits ONLY (no units here; include them instead in full solutions).
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter11: Energy In Thermal Processes
Section: Chapter Questions
Problem 19P
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Recommended textbooks for you
College Physics
Physics
ISBN:
9781285737027
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
College Physics
Physics
ISBN:
9781285737027
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning