\text { (a) Experiences a temperature increase of } 1 \mathrm{~K} \text { . What is } \Delta U^{t}, \text { in } \mathrm{kJ} ? Compare and discuss the results

of the three preceding parts. (b) Experiences a change in elevation Az. The change in potential energy AEp is the same as AU' for part (a). What is Az, in meters? (c) Is accelerated from rest to final velocity u. The change in kinetic energy AEk is the same as AU for part (a). What is u, in m.s^-1? \text { 2.12. One kg of liquid water at } 25^{\circ} \mathrm{C}, \text { for which } C_{P}=4.18 \mathrm{~kJ} \cdot \mathrm{kg}^{-1,{ }^{\circ} \mathrm{C}^{-1}:}