According to the first law of thermodynamics, Q=W+ΔU.Suppose…

According to the first law of thermodynamics, Q=W+ΔU.Suppose you supply 100 J of heat to a system (a gas in a piston). If it utilizes 80 J of the heat to do external work (e.g., the gas pushes the piston outwards), what would be the change in the internal energy of the system (the gas molecules)?

Denise has been hospitalized with acute gastritis. Her sympt…

Denise has been hospitalized with acute gastritis. Her symptoms were epigastric pressure (just above the stomach), headache, nausea, and vomiting with traces of old dark blood. She revealed that she had been suffering back pain and drank four shots of gin and took three aspirin to “kill the pain.”   What would the physician be looking for to verify this diagnosis?