) A rigid tank initially contains 5 kg nitrogen (N2) at 500 kPa and 327 oC. N2 is gradually cooled to 27 oC. due to the heat loss from N2 to ambient air at 20 oC, which is considered as boundary temperature of heat transfer. (5a). (4p) Please calculate the change in the total entropy of N2 during this cooling process (5b). (3p) Please find the heat loss from tank to ambient air during this process. (5c). (3p) Please determine the entropy generation during this process. (5d). (2p) Is this process reversible, irreversible or impossible

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.