Particle model of matter

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9 Terms

1
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Density

mass per unit volume.

2
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Internal energy

total kinetic + potential energy of particles.

3
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Specific heat capacity

energy to raise 1 kg by 1°C.

4
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Specific latent heat

energy to change state without temp change.

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p

m/V

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E

mcΔT

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E

mL

8
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What is the density of a 2.5 kg block with volume 0.5 m³?

ρ=m/V=2.5/0.5​=5kg/m3

9
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How much energy is needed to heat 1.2 kg of water by 10°C? (Use c=4200c = 4200c=4200)

E=mcΔT=1.2×4200×10=50400J