What is the change in internal energy of the system
A system receives 93 J of electrical work, performs 227 J of pressure-volume work and releases 155J of heat.What is the change in Internal energy of the system?
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When 0.2250 g Mg was heated with 0.5331 g N2gas, all the Mg was consumed forming 0.3114 g Mg3N2.What mass of N2 is left over.
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