**Chemistry Practice Problems****Problem 8:**Calculate the enthalpy change for the following reaction given the information below:\[\text{Al}_2(\text{CO}_3)_3(s) \rightarrow \text{Al}_2\text{O}_3(s) + 3\text{CO}_2(g)\]**Data Available:**1. \[\text{C(graphite)} + \text{O}_2(g) \rightarrow \text{CO}_2(g)\]2. \[4\text{Al(s)} + 3\text{O}_2(g) \rightarrow 2\text{Al}_2\text{O}_3(s)\]3. \[2\text{Al(s)} + 3\text{CO}_2(g) \rightarrow \text{Al}_2(\text{CO}_3)_3(s)\]- \(\Delta H = W\text{ kJ}\)- \(\Delta H = X\text{ kJ}\)- \(\Delta H = Y\text{ kJ}\)**Options:**- (A) W + X - Y- (B) 3W + X - Y- (C) 3W + \(\frac{1}{2}\)X + Y- (D) \(\frac{1}{2}\) (3W - X + Y)**Correct Answer:** B---**Problem 9:**In which of the following isothermal expansions of an ideal gas is the work done by the system the largest? Assume the temperature is the same for all choices.- (A) An expansion from 1 L to 5 L against an opposing pressure of \( \frac{1}{2} \) atm- (B) An expansion from 1 L to 5 L against an opposing pressure of 1 atm- (C) An expansion from 1 L to 5 L against an opposing pressure of 2 atm**Options:**- (A) W + X - Y- (B) 3W + X - Y- (C) 3W + \(\frac{1}{2}\)X + Y- (D) \(\frac{1}{2}\) (3W - X + Y)**Correct Answer:** D**Note:

Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

D 8. Calculate the enthalpy change for the following reaction given the information below. Al½(CO3)3(s) → Al,O3(s) + 3CO2(g) The information available to you is: >C(graphite) + O2(g) →'CO2(g) (4Al(s) + 302(g) → 2A1½O3(s) AH = W kJ %3D AH = X kJ %3D 2Al(s) + O2(g) + 3C(graphite) → Al,(CO3)3(s) AH =Y kJ (A) W + X - Y | 0 (B) 3W + X - Y (C) 3W + ¿X +Y O) 3W + X - Y |

D 8. Calculate the enthalpy change for the following reaction given the information below. Al½(CO3)3(s) → Al,O3(s) + 3CO2(g) The information available to you is: >C(graphite) + O2(g) →'CO2(g) (4Al(s) + 302(g) → 2A1½O3(s) AH = W kJ %3D AH = X kJ %3D 2Al(s) + O2(g) + 3C(graphite) → Al,(CO3)3(s) AH =Y kJ (A) W + X - Y | 0 (B) 3W + X - Y (C) 3W + ¿X +Y O) 3W + X - Y |

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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