For the next ten questions, consider an experiment in which a hot metal block is placed in contact with a cold metal block. The blocks are the same size and are made of the same material, and the blocks are isolated from the rest of the universe. At the beginning of the experiment, the hot block has a temperature of 80C and the cold block has a temperature of 40C. At the end of the experiment, both blocks have a temperature of 60C. 22 . If your system for thermodynamic analysis contains only the cold metal block, is the system open or closed? Closed 23. If your system for thermodynamic analysis contains only the cold metal block, is the system isolated? Isolated 24. If your system for thermodynamic analysis contains both metal blocks, is the system open or closed? Closed 25. If your system for thermodynamic analysis contains both metal blocks, is the system isolated? Yes 26. If your system for thermodynamic analysis contains only the cold metal block, is the heat term in the energy balance positive, negative, or zero? Positive because it is losing heat 27. If your system for thermodynamic analysis contains only the cold metal block, is the work term in the energy balance positive, negative, or zero? (neg or zero it think) Zero 28. If your system for thermodynamic analysis contains only the cold metal block, is the internal energy term in the energy balance positive, negative, or zero? Positive because the system gains internal energy as the block's temperature increases 29. If your system for thermodynamic analysis contains both metal blocks, is the heat term in the energy balance positive, negative, or zero? Zero because the hot block will increase the thermal energy of its surroundings, decreasing its temperature, but the cold block will decrease the thermal energy of its