23. Given the thermochemical equation 2SO2 + O2 → 2SO3, H°rxn = –198 kJ/mol, what is the standard enthalpy change for the decomposition of one mole of SO3? (A) 198 kJ/mol (B) –99 kJ/mol (C) 99 kJ/mol (D) 396 kJ/mol 10:30-12:00

24. Which of the following processes always results in an increase in the energy of a system? (A) The system loses heat and does work on the surroundings. (B) The system gains heat and does work on the surroundings (C) The system loses heat and has work done on it by the surroundings. (D) The system gains heat and has work done on it by the surroundings.

23. Given the thermochemical equation 2SO2 + O2 → 2SO3, H°rxn = –198 kJ/mol, what is the standard enthalpy change for the decomposition of one mole of SO3?
(A) 198 kJ/mol
(B) –99 kJ/mol
(C) 99 kJ/mol
(D) 396 kJ/mol 10:30-12:00

相關試題

相關試卷

23. Given the thermochemical equation 2SO2 + O2 → 2SO3, H°rxn = –198 kJ/mol, what is the standard enthalpy change for the decomposition of one mole of SO3?(A) 198 kJ/mol(B) –99 kJ/mol(C) 99 kJ/mol(D) 396 kJ/mol 10:30-12:00

相關試題

相關試卷

23. Given the thermochemical equation 2SO2 + O2 → 2SO3, H°rxn = –198 kJ/mol, what is the standard enthalpy change for the decomposition of one mole of SO3?
(A) 198 kJ/mol
(B) –99 kJ/mol
(C) 99 kJ/mol
(D) 396 kJ/mol 10:30-12:00