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3 cards from this section. Quick, good the night before a test.
What does the First Law of Thermodynamics state?
Think about energy in terms of transfers and changes.
Write the equation for energy balance in steady-flow combustion.
What are you comparing in a combustion reaction?
What is the energy balance equation for combustion?
Consider how heat changes as a reaction proceeds.
True or False: Internal energy can be calculated without considering work done in the system.
Remember the relationship defined in ΔU = Q - W.
A combustion reaction of octane (C8H18) releases 5470 kJ/mol. If you had 5 moles of octane, how much energy is released?
Multiply the energy per mole by the number of moles.
A gas turbine system operates at a pressure of 1 atm and a temperature of 300 K. Calculate the change in internal energy when it releases 1000 kJ of heat while doing 600 kJ of work.
Remember to correctly apply the signs for heat and work.
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