What does a negative AHrxn tell you about the reaction? The system is becoming more disordered. The reaction is transferring heat to the surroundings The reaction is absorbing heat from the surroundings The reaction is nonspontaneous at that temperature. The reaction is spontaneous at that temperature. The system is becoming less disordered.

What does a negative AHrxn tell you about the reaction? The system is becoming more disordered. The reaction is transferring heat to the surroundings The reaction is absorbing heat from the surroundings The reaction is nonspontaneous at that temperature. The reaction is spontaneous at that temperature. The system is becoming less disordered.

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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Spontaneous When entropy is positive and enthalpy is negative, a process is spontaneous. This means the reaction proceeds on its own under standard conditions, giving off energy as the reaction proceeds. Spontaneous at High Temperatures When entropy is positive and enthalpy is positive, a process is spontaneous at high temperatures because the products in the system are able to use thermal energy from the surroundings in order to react. Thermal energy increases the kinetic energy of the molecules. An example of this is ice melting. Ice will not melt if the temperature is not high enough. Spontaneous at Low Temperatures When entropy is negative and enthalpy is negative, a process is spontaneous at low temperatures. This type of reaction will release energy into the surroundings, and the ability to release this heat is important. If the temperature of the surrounding system is too high, the reactants have to overcome this energy in order to react and release their own heat energy. An…
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