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1. A weather balloon with a volume of 200.0 L is filled with air and launched at 20°C at sea level, where the atmospheric pre
2. Use the following enthalpies of formation to calculate an approximate enthalpy of reaction, AHrxn for: (5 pts) C3H8 (g) +
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Answer #1

Ti ① By combined gan law, Piul = P2 V 2 T2 Here, P, =latm, V, = 2002 ,T,= (20+273) K = 293k Pz63 atm = 0.083 atm, T2 = 220K B

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