2063: Carnot Cycle - Revision history

162.158.175.46: /* Explanation */ pretty sure isentropic expansion has the volume increasing

2023-09-20T13:15:59Z

‎Explanation: pretty sure isentropic expansion has the volume increasing

Natg19: /* Transcript */ dark energy

2023-01-11T23:19:37Z

‎Transcript: dark energy

162.158.238.223: /* Explanation */

2022-10-25T07:51:54Z

‎Explanation

Mushrooms: weird spacing

2022-09-28T11:52:56Z

weird spacing

Jacky720: rv

2022-05-04T21:29:09Z

Show changes

Ex Kay Cee Dee at 21:29, 4 May 2022

2022-05-04T21:29:08Z

Show changes

Jacky720: rv

2022-05-04T21:00:42Z

Show changes

Ex Kay Cee Dee at 20:39, 4 May 2022

2022-05-04T20:39:04Z

Show changes

Jacky720: rv

2022-05-04T20:33:35Z

Show changes

Ex Kay Cee Dee at 20:30, 4 May 2022

2022-05-04T20:30:32Z

Show changes

@@ Line 13: / Line 13: @@
 Pressure–volume diagrams were first developed to understand the efficiency of steam engines and plot the change of pressure ''p'' with respect to volume ''V'' for a specific process. The process forms a cycle and the amount of energy involved can be estimated by the area under the curve on the chart. The Carnot cycle describes the ideal efficiency that such an engine can achieve during the conversion of heat into work, or vice versa like in a refrigeration system. The real steps are called (explained in short):
 #'''Isothermal expansion''' (An external heat source causes an increase of volume and an antiproportional lowering of pressure, driving the motor. It's more efficient if this step is performed slowly.)
-#'''Isentropic expansion''' (The volume of the gas goes down further while the pressure decreases dramatically, as the external heat source is now absent, transforming heat directly into work, lowering the Temperature. This step is more efficient, if it goes quicker.)
+#'''Isentropic expansion''' (The volume of the gas increases further while the pressure decreases dramatically, as the external heat source is now absent, transforming heat directly into work, lowering the Temperature. This step is more efficient, if it goes quicker.)
 #'''Isothermal compression''' (External cooling and a small amount of work from another part of the machine decreases the volume of the gas and leads to the last step:)
 #'''Isentropic compression''' (Now the gas is sharply compressed, using part of the work from step two to return the gas to the beginning of step one, raising the Temperature back up.)

@@ Line 75: / Line 75: @@
 [[Category:Line graphs]]
 [[Category:Physics]]
 [[Category:LOTR]]

@@ Line 33: / Line 33: @@
 '''2. Isotonic expansion.''' The gas expands further due to dark energy while percent milkfat remains constant.
-{{w|Isotonic}} is a descriptor commonly associated with sports drinks (and not thermodynamics), which contain similar concentrations of salt and sugar as in the human body. {{w|Dark energy}} is hypothesized to be a cause for the expansion of the universe, which obviously isn't relevant to thermodynamics (yet). The [https://hypertextbook.com/facts/2002/AliciaNoelleJones.shtml density of milk] depends on milkfat and solids-non-fat, which includes lactose. Fortified milk has increased solids-non-fat but the same percentage of milkfat, resulting in increased calories and an increased density. So the fortification of milk results in increased calories, possibly referred to as dark energy, and a contraction, as less space is needed for 1 kg of milk. However, this explanation does not match the expansion suggested in the comic.
+{{w|Isotonic}} is a descriptor commonly associated with sports drinks (and not thermodynamics), which contain similar concentrations of salt and sugar as in the human body. {{w|Dark energy}} is hypothesized to be a cause for the accelerating expansion of the universe, which obviously isn't relevant to thermodynamics (yet). The [https://hypertextbook.com/facts/2002/AliciaNoelleJones.shtml density of milk] depends on milkfat and solids-non-fat, which includes lactose. Fortified milk has increased solids-non-fat but the same percentage of milkfat, resulting in increased calories and an increased density. So the fortification of milk results in increased calories, possibly referred to as dark energy, and a contraction, as less space is needed for 1 kg of milk. However, this explanation does not match the expansion suggested in the comic.
 Later Randall again combined dark energy (and also dark matter) with milkfat in [[2216: Percent Milkfat]].

@@ Line 33: / Line 33: @@
 '''2. Isotonic expansion.''' The gas expands further due to dark energy while percent milkfat remains constant.
-{{w|Isotonic}} is a descriptor commonly associated with sports drinks (and not thermodynamics), which contain similar concentrations of salt and sugar as in the human body. {{w|Dark energy}} is hypothesized to be a cause for the expansion of the universe, which obviously isn't relevant to thermodynamics.(Yet.) The [https://hypertextbook.com/facts/2002/AliciaNoelleJones.shtml density of milk] depends on milkfat and solids-non-fat, which includes lactose. Fortified milk has increased solids-non-fat but the same percentage of milkfat, resulting in increased calories and an increased density. So the fortification of milk results in increased calories, possibly referred to as dark energy, and a contraction, as less space is needed for 1 kg of milk. However, this explanation does not match the expansion suggested in the comic.
+{{w|Isotonic}} is a descriptor commonly associated with sports drinks (and not thermodynamics), which contain similar concentrations of salt and sugar as in the human body. {{w|Dark energy}} is hypothesized to be a cause for the expansion of the universe, which obviously isn't relevant to thermodynamics (yet). The [https://hypertextbook.com/facts/2002/AliciaNoelleJones.shtml density of milk] depends on milkfat and solids-non-fat, which includes lactose. Fortified milk has increased solids-non-fat but the same percentage of milkfat, resulting in increased calories and an increased density. So the fortification of milk results in increased calories, possibly referred to as dark energy, and a contraction, as less space is needed for 1 kg of milk. However, this explanation does not match the expansion suggested in the comic.
 Later Randall again combined dark energy (and also dark matter) with milkfat in [[2216: Percent Milkfat]].