Use the second law of thermodynamics to explain why fossil fuels and their energy aren’t recoverable once combusted.
What will be an ideal response?
The Second Law relies on the principle of irreversibility/irrecoverability. Simple stated, a given quantity of fossil fuels, once burned, cannot reconstitute themselves with time—the original system state is not restored once the combustion stops. The property of entropy in an irreversible process also suggests that we cannot fully recover the waste heat or energy created by combustion technology (such as an engine or steam turbine).
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A press-on type power steering pump pulley may be installed by tapping on the pulley with a soft hammer.
Answer the following statement true (T) or false (F)
The preferred first response to a fire is to _____.
a. leave the controls and fight the fire b. set the brakes and evacuate the crane c. stop the lift and lower the load d. look to the signal person for guidance
The vanes of the impellers used in circulating pumps in hot water heating systems are usually enclosed, and are referred to as ____________________ impellers.
Fill in the blank(s) with the appropriate word(s).
Define nesting blanks.
What will be an ideal response?