019 10.0 points 17 kg of water is heated from 63 C to 100 C. What is the change in entropy? The specific heat of water is 10 cal/kg . K. 1. 80.3332 2. 117.989 3. 101.16 4. 63.1351 5. 78.4106 6. 17.7594 7. 86.1412 8. 30.9589 9. 13.8949 10. 67.3672 Answer in units of cal/K. 020 10.0 points 8.84 mol of an ideal gas at 6'C are compressed isothermally from an initial volume of 95 cm" to a final volume of 18.5 cm". What is the change in entropy? 1. -49.1086 2. -38.7074 3. -45.1748 4. -104.674 5. -89.9844 6. -45.63767. -37.8631 8. -62.9311 9. -84.6243 10. -120.189 Answer in units of J/K. 021 10.0 points Calculate the change in entropy of 2.47 mol of an ideal gas that undergoes a free expansion to 4.62 times its initial volume. The molar gas constant is 8.31451 J/K . mol . 1. 38.9945 2. 65.3251 3. 23.8478 4. 35.863 5. 61.4436 6. 28.3203 7. 38.5541 8. 45.8052 D. 31.4295 10. 37.6253 Answer in units of J/K