Typing Spanish Accents x M- Univ. of South Mississ x www.saplingleaming.co x Bal
ID: 524853 • Letter: T
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Typing Spanish Accents x M- Univ. of South Mississ x www.saplingleaming.co x Bal The Following E x C www.sap nglea ning.com/ibiscms/m 3578767 /mod/ibis/view.php?id: 5/5/2017 05:00 PM A 67.8/100 O 5/4/2017 10:15 AM Gradebook Attempts Score Print Calculator Periodic Table Question 7 of 29 Map Sapling Learning At 1 atm, how much energy is required to heat 39,0 g of Hzo(s) at-16.0 TC to Hzo(g) at 169.0 *C? Helpful constants can be found here. Number 95 kJ 10 0 O Previous 2 check Answer Next Exit 2017 Sapling Learning Inc. about us careers privacy policy terms of use contact us Assignment Information Available From: 4/15/2017 08:00 AM 5/5/2017 05:00 PM Due Date: Points Possible Grade Category: Extra Credit Description: Policies Extra credit You can check your answers. You can view solutions after the due d You can keep trying to answer each question until you get it right or give up. You lose 5% of the points available to each answer in your question for each incorrect attempt at that o Textbook o Help with This Topic O We b Help & Videos OTechnical Support and Bug ReportsExplanation / Answer
We require 2 type of heat, latent heat and sensible heat
Sensible heat (CP): heat change due to Temperature difference
Latent heat (LH): Heat involved in changing phases (no change of T)
Then
Q1 = m*Cp ice * (Tf – T1)
Q2 = m*LH ice
Q3 = m*Cp wáter * (Tb – Tf)
Q4 = m*LH vap
Q5 = m*Cp vap* (T2 – Tb)
Note that Tf = 0°C; Tb = 100°C, LH ice = 334 kJ/kg; LH water = 2264.76 kJ/kg.
Cp ice = 2.01 J/g°C ; Cp water = 4.184 J/g°C; Cp vapor = 2.030 kJ/kg°C
Then
Q1 = 39*2.01 * (0 – -16) = 1254.24
Q2 = 39*334 = 13026
Q3 = 39*4.184 * (100 – 0) = 16317.6
Q4 = 39*2264.76 = 88325.64
Q5 = 39*2.03* (169– 100) = 5462.73
QT = Q1+Q2+Q3+Q4+Q5 = 1254.24 +13026+16317.6 +88325.64+5462.73
Qt = 124386.21J
QT = 124.386 kJ
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