Plan and Solve What unknown are you trying to calculate? Amount of energy absorbed, Q What formula contains the given quantity and the unknown? Q = mcAT = mc(T-T₁) Substitute the known values and solve. Q=(25.0 g)(0.48 cal/g-°C)(0.0°C - (-10.0°C)) = 120 cal Look Back and Check Is your answer reasonable? Yes, the sign shows that heat was absorbed and the unit, c proper unit for energy. Math Practice Note that

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question
100%
Initial temp
Plan and Solve
What unknown are you trying to calculate?
Amount of energy absorbed, Q
What formula contains the given quantity and the unknown?
Q = mcAT = mc(T₁-T₁)
Substitute the known values and solve.
Q=(25.0 g)(0.48 cal/g °C)(0.0°C - (-10.0°C)) = 120 cal
Look Back and Check
Is your answer reasonable?
Yes, the sign shows that heat was absorbed and the unit, calories, is a
proper unit for energy.
Math Practice
On a separate sheet of paper, solve the following problems. Note that quantity
of heat energy required to change the phase of a substance is given by the
following equation: Q = mL, where Q is the heat required, m is the mass, and
L is the heat of fusion or vaporization.
1. How much energy is absorbed when 25.0 g of ice at 0.0°C melts to form
water at 0.0°C? The heat of fusion of ice is 80 cal/g.
2. How much energy is absorbed when the water at 0.0°C in Question 1 is
heated to 100.0°C? The specific heat of water is 1.0 cal/g. °C.
3. How much energy is absorbed when the water at 100.0°C in Question 2
vaporizes to 100.0°C? The heat of vaporization of water is 540 cal/g.
4. The steam in Question 3 is used to melt ice. How much ice will be
melted by the energy released by the condensation of the steam at
100.0°C?
#4 ↑ please
Transcribed Image Text:Initial temp Plan and Solve What unknown are you trying to calculate? Amount of energy absorbed, Q What formula contains the given quantity and the unknown? Q = mcAT = mc(T₁-T₁) Substitute the known values and solve. Q=(25.0 g)(0.48 cal/g °C)(0.0°C - (-10.0°C)) = 120 cal Look Back and Check Is your answer reasonable? Yes, the sign shows that heat was absorbed and the unit, calories, is a proper unit for energy. Math Practice On a separate sheet of paper, solve the following problems. Note that quantity of heat energy required to change the phase of a substance is given by the following equation: Q = mL, where Q is the heat required, m is the mass, and L is the heat of fusion or vaporization. 1. How much energy is absorbed when 25.0 g of ice at 0.0°C melts to form water at 0.0°C? The heat of fusion of ice is 80 cal/g. 2. How much energy is absorbed when the water at 0.0°C in Question 1 is heated to 100.0°C? The specific heat of water is 1.0 cal/g. °C. 3. How much energy is absorbed when the water at 100.0°C in Question 2 vaporizes to 100.0°C? The heat of vaporization of water is 540 cal/g. 4. The steam in Question 3 is used to melt ice. How much ice will be melted by the energy released by the condensation of the steam at 100.0°C? #4 ↑ please
Expert Solution
steps

Step by step

Solved in 3 steps with 8 images

Blurred answer
Knowledge Booster
Gibbs free Energy
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.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON