Engineering, 19.09.2019 19:00, seddy86
20.1-6. drying of wood. a flat slab of douglas fir wood 50.8 mm thick and containing 30 wt % moisture is being dried from both sides (neglecting ends and edges). the equilibrium moisture content at the surface of the wood due to the drying air blown over it is held at 5 wt % moisture. the drying can be assumed to be represented by a diffusivity of 3.72 × 10 –6 m2 /h. calculate the time for the center to reach 10% moisture.
Answers: 1
Engineering, 04.07.2019 18:10, Candi9697
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:20, jessie8022
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
Engineering, 04.07.2019 19:10, Calliedevore
The proportional limit is always greater than the yield strength for a material. a)-trune b)- false
Answers: 3
20.1-6. drying of wood. a flat slab of douglas fir wood 50.8 mm thick and containing 30 wt % moistur...
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