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Specific Heat Capacity
Isobaric specific heat capacity
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| body | c_{p}(P,T) = \frac{1}{m} \frac{dQ}{dT} \big|_{P = const} |
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Isochoric specific heat capacity
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| body | c_{v}(P,T)= \frac{1}{m} \frac{dQ}{dT} \big|_{V = const} |
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Thermal conductivity
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| body | \bar j = \frac{dQ}{dt \ dS} \ \bar n_{dS} = \lambda(P,T) \bar \nabla T |
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– differential flux across the differential area
Temperature conductivity
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| body | a(P,T) = \frac{\lambda}{c_{p} \ \rho} |
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Reference values for popular fluids
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| body | \rho, \ 10^3 \ \rm kg/m^3 |
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| body | С_р, \ \rm kJ/(kg \cdot °С) |
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| body | \lambda , \ \rm W/(m \cdot °С) |
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| body | a, \ 10^{-6} \ \rm m^2/s |
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gas |
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oil | 0.65 – 1.05 (0.82 – 0.95)* | 1.7 – 2.1 | 0.12 – 0.14 | 0.07 – 0.09 |
water | 1 | 4.183 | 0.6 | 0.14 |
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