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H 2 O P-T Phase DiagramPowerPoint Presentation

H 2 O P-T Phase Diagram

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## PowerPoint Slideshow about ' H 2 O P-T Phase Diagram' - leroy-lawrence

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H2O P-T Phase Diagram

For High T the Energy

is Mostly Kinetic Energy

and KE= ½ mu2

(u=the molecular speed is high)

(m=molecular mass )

[u]- meters per sec, ms-1

[m]- kilograms, kg

[KE] - joules, J

PE

KE

• What is pressure(P)?

• What is volume(V)?

• N=number of particles(atoms/molecules)

• N/V= number density( number per unit volume)

H2O P-T Phase Diagram

For High T the Energy

is Mostly Kinetic Energy

and KE= ½ mu2

(u=molecular speed is high)

(m=molecular mass )

[u]- meters per sec, ms-1

[m]- kilograms, kg

[KE] - joules, J

PE

KE

Effusive beam used to mDx/easure speed distribution

u=Dx/Dt

For He with u=500 ms-1

m= 4 amu

KE= ½ (4 amu)(500 ms-1)2

(1.66x10-27 kg)(500,000m2s-2)

KE=8.3 x10-22 J

Dx

Speed

Fig. 9-13, p. 383

<u>=(8kBT/πm)1/2 average speed

<u2>=(3kBT/m) average square speed

urms= (3kBT/m)1/2 root mean square speed

ump = (2kBT/m)1/2 most probable spped

Fig. 9-14, p. 384

<u>=(8kBT/πm)1/2 average speed

<u2>=(3kBT/m) average square speed

urms= (3kBT/m)1/2 root mean square speed

ump = (2kBT/m)1/2 most probable spped

Fig. 9-14, p. 384

Effusive beam used to mDx/easure speed distribution

u=Dx/Dt

For He with u=500 ms-1

m= 4 amu

KE= ½ (4 amu)(500 ms-1)2

(1.66x10-27 kg)(500,000m2s-2)

KE=8.3 x10-22 J

Dx

Speed

Fig. 9-13, p. 383

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