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Chrome File Edit View History Bookmarks People Window Help Mastering Physics: Chapter 19 Homework https:// session.masteringphysics.com/ myct/itemView?offse next&assignmentProblemID; 16885 MIPABRAHAM2 5242016S Chapter 19 Homework Exercise 19.24 Exercise 19.24 Part A Propane gas (C3H8) behaves like an ideal gas with Determine the molar heat capacity at constant volume. Y F 1.127 CV Submit My Answers Give U Part B Determine the molar heat capacity at constant pressure Submit My Answers Give U J/mol. K J/mol. K S 82% Thu 1:43 AM E Signed in as Tanner Calloway Help Close Resources previous l 10 of 11 l next Continue Provide Feedback

Explanation / Answer

Part A :

is the heat capacity ratio,

= Cp/Cv

Moreover the molar heat capacity at constant pressure and the molar heat capacity at constant volume for an ideal gas differ by R:
Cp - Cv = R

Therefor , = (Cv + R)/Cv = 1 + R/Cv

Cv = R/( - 1)
= 8.3145J/molK / (1.127 - 1)
= 65.469J/molK

Part B:

Molar heat capacity at constant pressure:

Cp = Cv + R = R/( - 1) + R
= R/( - 1)
= 8.3145J/molK 1.127 / (1.127 - 1)
= 73.783J/molK

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