3. The following statement is not correct: Group of answer choices A, The entropy for any substance increases with temperature B, The process of converting a substance from solid to liquid (melting) is characterized by an increase in entropy, ΔS > 0. C, For processes involving a decrease in the number of microstates, Wf < Wi, the entropy of the system increases and ΔS > 0. D, A microstate is a specific configuration of all the locations and energies of the atoms or molecules that make up a system.

4. Which of the following statements does not correctly represent the second law of thermodynamics? a. Perpetual motion machines do not exist. b. Heat flows spontaneously from high temperature regions to low temperature regions. c. The entropy of the universe tends to decrease. d. Heat cannot be converted to work with 100% efficiency. e. Transporting heat from low temperature regions to high temperature regions requires the application of external work.

Problem 5 Consider a substance that has a melting temperature of T= 159 K at p=1 atm and a melting enthalpy of AHm = 4900 J/mol. Determine the entropy of melting the substance.

When 2.1 kg of water at 12.3 °C is mixed with 3.7 kg of water at 39.7 °C in a well-insulated container, what is the change in entropy of the system? Part A Make an estimate. Express your answer to two significant figures and include the appropriate units. HÁ ? AS = Value Units Submit Request Answer Part B Use the integral AS = [dQ/T. Express your answer to two significant figures and include the appropriate units. HA AS = Value Units Submit Request Answer