Three pounds mass of water in a piston–cylinder assembly, initially a saturated liquid at 15 lbf/in2, undergoes a constant pressure, internally reversible expansion to x2 = 90%. for this reversible process, determine the work by integrating p dv and the heat transfer by integrating t ds, each in btu.

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

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wavelength variability is the right one

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explanation:

2b2t

explanation:

2b2t