Assume the heat capacity values in Table 2.3 apply at all temperatures unless otherwise stated. (1) For the following reaction at 298 K: CaCO, (s) CaO(s) + CO,(8) AH98 is positive (a) Deduce how AH alters with increase in temperature. (b) Indicate the trend by means of a simple sketch graph. (c) Calculate Afg98 referring to Table 2.3 and the following data: CaCO, (s) -1207 Co2 (g) CaO(s) H9s (kJ mol) -635 -394

Assume the heat capacity values in Table 2.3 apply at all temperatures unless otherwise stated. (1) For the following reaction at 298 K: CaCO, (s) CaO(s) + CO,(8) AH98 is positive (a) Deduce how AH alters with increase in temperature. (b) Indicate the trend by means of a simple sketch graph. (c) Calculate Afg98 referring to Table 2.3 and the following data: CaCO, (s) -1207 Co2 (g) CaO(s) H9s (kJ mol) -635 -394

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter12: Thermodynamic Processes And Thermochemistry

Section: Chapter Questions

Problem 44P

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