1. Real-life heat Capacity is temperature dependent. Consider the formation of water vapor H2(g)+( ½)O2(g) → H20(g) The heat capacities Cp(T) for each of the reactants and the product is given by Cp=a+bT+CT 2 where the constants a, b and c depend on the substance. The above equation is valid from 298 K to 2,000 K. a. The units of a, b and c are .? b. Calculate AH given (298 K)=-60kCal. Express your answers in terms of a, b, c for the reactants and products (aH2, bH2 --) (Answers choices for part b) AH (T) = -60kCal AH (T) = -60kCal + (aH,0 – an, – ļa0,) (T – 298K) + 4 (b,0 – bu, – įbo.) (T² – 298° K²) – (cH,0 – CH, – ¿co,) († - AH (T) = (an,0 – a, – ža0,) (T – 298K) + (bn,0 – bu, – įbo,) (Tª – 298° K²) – (c1,0 – en, – įco,) († - *K) 208K O AH (T) = -60kCal – (an,0 – an, – ža0,) (T – 298K) – † (bH,0 – bu, – įbo,) (Tª – 298° K²) + (cH,0 – cH, – ļco.) († - )

1. Real-life heat Capacity is temperature dependent. Consider the formation of water vapor H2(g)+( ½)O2(g) → H20(g) The heat capacities Cp(T) for each of the reactants and the product is given by Cp=a+bT+CT 2 where the constants a, b and c depend on the substance. The above equation is valid from 298 K to 2,000 K. a. The units of a, b and c are .? b. Calculate AH given (298 K)=-60kCal. Express your answers in terms of a, b, c for the reactants and products (aH2, bH2 --) (Answers choices for part b) AH (T) = -60kCal AH (T) = -60kCal + (aH,0 – an, – ļa0,) (T – 298K) + 4 (b,0 – bu, – įbo.) (T² – 298° K²) – (cH,0 – CH, – ¿co,) († - AH (T) = (an,0 – a, – ža0,) (T – 298K) + (bn,0 – bu, – įbo,) (Tª – 298° K²) – (c1,0 – en, – įco,) († - *K) 208K O AH (T) = -60kCal – (an,0 – an, – ža0,) (T – 298K) – † (bH,0 – bu, – įbo,) (Tª – 298° K²) + (cH,0 – cH, – ļco.) († - )

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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