10. The heat of vaporization for 1.0 mole of water at 373 K and 1.0 atm is 40.55 kJ/mol. Calculate ΔS (J/K mol) for the process at 373 K. (A) +109 (B) -109 (C) +406 (D) 0 (E) none of these

7. Which of the following statements is correct? (A) An excited atom can return to its ground state by absorbing electromagnetic radiation (B) 1s orbital in He+ is larger (probability density is shifted outward) than the 1s orbital in H (C) Energy of electromagnetic radiation increases as its frequency decreases (D) The binding forces in a molecular solid include London dispersion forces (E) none of these

10. The heat of vaporization for 1.0 mole of water at 373 K and 1.0 atm is 40.55 kJ/mol. Calculate ΔS (J/K mol) for the process at 373 K.
(A) +109
(B) -109
(C) +406
(D) 0
(E) none of these

相關試題

相關試卷