Search 1:40 PM Home I myUVU x\" MyLab and N a MasteringChemistry: HW # 1 × https

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Search 1:40 PM Home I myUVU x" MyLab and N a MasteringChemistry: HW # 1 × https/session.masteringchemistry.com/myct/itemvie.. HWThe First Law of Incorrect; Try Again; 4 attempts remaining Part B An ideal gaseous reaction (which is a hypothetical gaseous reaction that conforms to the laws governing gas behavior) occurs at a constant pressure of 30.0 atm and releases 73.7 kJ of heat. Before the reaction, the volume of the system was 8.80 L .AMer the reactor, the volume of the system was 2.20 L Calculate the total intermal energy change, AE, in kilojoules Express your answer with the appropriate units AE-Value Units My Answers Give Up State functions versus path functions The change in internal energy. . is a state functon because n depends only onthe intial and firat states ofthe system, and not on the path of change In conrast g and te are pam functions because they depend on the path of change and not just the initial and final states of the system. Part C Anideal gas (which ahypotetical gas that conforms to he lavvs governing gas behavior) confined to a container wth a massless piston at the top A massless wire is attached to the piston. When an external pressure of 2.00 atim is applied to the wire, the gas compresses from 6.60 to 3.30 L. When the external pressure is increased to 2.50 atm, the gas further compresses from 3.30 to 2.64 L In a separate experiment with the same initial conditions, a pressure of 2.50 atm was applied to the ideal gas, decreasing its volume from 6.60 to 2.64 L in one step. te diference between q for the Gas the final temperature was the same for both processes, what two-step process and q for the one-step process in joules? Express your answer with the appropriate units Value Units My Amswers Give Up

Explanation / Answer

part A

2A + B <===> 2C + 2D

DH0rxn = (2*dH0f,C + 2*dH0f,D) - (2*dH0f,A + 1*dH0f,B)

        = (2*219+2*-511)-(2*-271+1*-375)

        = 333 kj

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