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University · Chemistry

University Chemistry practice

15 questions on physical chemistry, electrochemistry. The answer key is a separate download.

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What is on the worksheet

  1. For a model reaction, ΔH=-38 kJ/mol, ΔS=-199 J/(mol·K), and T=280 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  2. At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=0.3 V, n=1, and Q=10^(-1), find E. Round the final result to 4 decimal places if needed. Answer in V.

  3. For a model reaction, ΔH=-14 kJ/mol, ΔS=19 J/(mol·K), and T=580 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  4. For a model reaction, ΔH=-90 kJ/mol, ΔS=35 J/(mol·K), and T=310 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  5. For a model reaction, ΔH=30 kJ/mol, ΔS=182 J/(mol·K), and T=540 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  6. At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=1.4 V, n=4, and Q=10^(0), find E. Round the final result to 4 decimal places if needed. Answer in V.

  7. At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=2.4 V, n=4, and Q=10^(4), find E. Round the final result to 4 decimal places if needed. Answer in V.

  8. For a model reaction, ΔH=-58 kJ/mol, ΔS=29 J/(mol·K), and T=570 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  9. For a model reaction, ΔH=18 kJ/mol, ΔS=114 J/(mol·K), and T=380 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  10. For a model reaction, ΔH=-66 kJ/mol, ΔS=-90 J/(mol·K), and T=240 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  11. At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=0.6 V, n=6, and Q=10^(1), find E. Round the final result to 4 decimal places if needed. Answer in V.

  12. At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=2.6 V, n=3, and Q=10^(3), find E. Round the final result to 4 decimal places if needed. Answer in V.

  13. At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=2.8 V, n=3, and Q=10^(2), find E. Round the final result to 4 decimal places if needed. Answer in V.

  14. For a model reaction, ΔH=68 kJ/mol, ΔS=178 J/(mol·K), and T=540 K. Find ΔG in kJ/mol. Round the final result to 4 decimal places if needed. Answer in kJ/mol.

  15. At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=2.3 V, n=3, and Q=10^(-2), find E. Round the final result to 4 decimal places if needed. Answer in V.