The constant pressure molar heat capacity of ammonia is given by the following expression in J K-1mol-1: Cp,m = 29.75 + 25.1 x 10-3 T – 1.55 x 10^5 / T2 A 1.000 mole sample of ammonia gas is initially at 25.00 oC and 1.000 bar of pressure and is then heated at constant pressure against an external pressure equal to 1.000 bar until the volume occupied has tripled. a) Calculate q b) Calculate w c) Calculate ΔH d) Calculate ΔU
Added by Victor J.
Step 1
Initial volume, V1 = 1 mole Final volume, V2 = 3 moles Initial temperature, T1 = 25.00 oC = 298.15 K Initial pressure, P1 = 1.000 bar Final pressure, P2 = 1.000 bar Using the ideal gas law, we can find the final temperature, T2. Show more…
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