# Thermodynamics

Μηχανική

28 Οκτ 2013 (πριν από 5 χρόνια και 3 μήνες)

98 εμφανίσεις

Thermodynamics

Chapter 15

Figure 15
-
1

An ideal gas in a cylinder fitted with a movable piston.

-

PV=nRT. If n, R, and T are constant, then PV=k

-

What type of mathematical relationship exists between P & V?

-

Sketch a plot of P vs. V.

Define these terms:

(If you know what each term
means, you should be able to
compare/contrast!)

Isobaric

Isochoric

Isothermal

Isovolumetric

Figure 15
-
22

Problem 10

Figure 15
-
3

PV diagram for adiabatic (AC) and isothermal (AB) processes on
an ideal gas.

Figure 15
-
4

(a) Isobaric ("same pressure") process. (b) Isovolumetric ("same
volume") process.

Figure 15
-
6

PV diagram for different processes where the system changes from
A to B.

Figure 15
-
11

Schematic diagram of energy transfers for a heat engine.

Figure 15
-
15

Diagram of an impossible perfect heat engine in which all heat
input is used to do work.

Figure 15
-
16

Schematic diagram of energy transfers for a refrigerator or air
conditioner.

Figure 15
-
17

Typical refrigerator system

Figure 15
-
18

A heat pump uses an electric motor to "pump" heat from the cold
outside to the warm inside of a house.