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19 Nov 2019
For a chemical reaction to be spontaneous at any temperature, which of the following conditions must be met? Delta S degree > 0, Delta H degree > 0 Delta S degree > 0, Delta H degree 0 A sample of water is heated at a constant pressure of one atmosphere. Initially, the sample is ice at 260 K, and at the end the sample consists of steam at 400 K. In which of the following 5 K temperature intervals would there be the greatest increase in the entropy of the sample? From 260 K to 265 K from 275 K to 280 K from 360 K to 365 K 370 K to 375 K from 395 K to 400 K The equilibrium constant for the following reaction is 2.0 times 10^-9 at 25 degree C. 2NH_3(g) bidirectional N_2(g) + 3 H_2(g) The value of Delta G degree for this reaction in kJ/mol 22 50 -25 -50 -22 For a certain reaction, Delta H = -45 kJ and Delta s = -125 J/K. Assume that H and S do not vary with temperature. At what temperature will the reaction have Delta G = 0? 0.36 degree C 0.36 K 360 degree C 360 K absolute zero
For a chemical reaction to be spontaneous at any temperature, which of the following conditions must be met? Delta S degree > 0, Delta H degree > 0 Delta S degree > 0, Delta H degree 0 A sample of water is heated at a constant pressure of one atmosphere. Initially, the sample is ice at 260 K, and at the end the sample consists of steam at 400 K. In which of the following 5 K temperature intervals would there be the greatest increase in the entropy of the sample? From 260 K to 265 K from 275 K to 280 K from 360 K to 365 K 370 K to 375 K from 395 K to 400 K The equilibrium constant for the following reaction is 2.0 times 10^-9 at 25 degree C. 2NH_3(g) bidirectional N_2(g) + 3 H_2(g) The value of Delta G degree for this reaction in kJ/mol 22 50 -25 -50 -22 For a certain reaction, Delta H = -45 kJ and Delta s = -125 J/K. Assume that H and S do not vary with temperature. At what temperature will the reaction have Delta G = 0? 0.36 degree C 0.36 K 360 degree C 360 K absolute zero
Nelly StrackeLv2
19 May 2019