Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 6, Problem 15P
To determine
Find whether the isotopes are fissile or not.
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Determine the number of protons and neutrons in each isotope
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Two hypothetical metals are created with different elements that have the same atomic mass (g/mole) and the same atomic radius. Metal A has a densityof 9.50 g/cm3 and metal B has a density of 8.73 g/cm3. If one of these metals has a BCC lattice structure and the other has an FCC lattice structure, identify the structure that corresponds to each of one of them. Justify your answer.
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- Two hypothetical metals are created with different elements that have the same atomic mass (g/mole) and the same atomic radius. Metal A has a density of 9.50 g/cm3 and metal B has a density of 8.73 g/cm3. If one of these metals has a BCC lattice structure and the other has an FCC lattice structure, identify the structure that corresponds to each of one of them. Justify your answer.arrow_forwardA hypothetical metal A with a BCC lattice structure has a density of 8.87 g/cm3 If a hypothetical metal B with an FCC lattice structure is created with a different element that has almost the same atomic mass (g/mole) and almost the same atomic radius, what is the density of metal B? Justify your answer.arrow_forwardHow much heat in joules must be added to 0.894 kg of beryllium to change it from a solid at 932°C to a liquid at 1285°C (its melting point)? For beryllium: L₁ = 1.35×106 J/kg, Lv = 3.24×10 J/kg, c = 1820 J/kg C° Q =arrow_forward
- RTC means? * Your answer For the particles of an atom, which two particles have the same mass? * PROTON NEUTRON ELECTRON BORON NUETRON IRON This is a required question Is the effect of temperature on all materials the same? Yes or no. * Your answerarrow_forwardCalculate the theoretical density of Cao, given that it has the rock salt crystal structure (see Figure 3). Take the radius of the Calcium and oxygen ions to be 0.1 and 0.14 nm, respectively. The Atomic Weight (g/mol) of Calcium is 40.07, whilst oxygen is 16.00. Figure 3. A unit cell for the calcium oxide (CaO), crystal structure Select one: a. 8.417 g/cm3 b. 1.683 g/cm3 c. 3.367 g/cm3 d. 4.489 g/cm3arrow_forwardConsidering an alloy of the two soluble components A and B described by a phase diagram Figure P2.31, determine the masses of the alloy that are in the liquid and solid phases at a given temperature if the total mass of the alloy is 100 g, component B represents 60% of the alloy, 25% of the liquid is component B, and 70% of solid is component B.arrow_forward
- Considering an alloy of the two soluble components A and B described by a phase diagram similar to that shown in Figure 2.14, determine the masses of the alloy that are in the liquid and solid phases at a given temperature if the total mass of the alloy is 100 g, component B represents 45% of the alloy, 17% of the liquid is component B, and 65% of solid is component B.arrow_forwardDetermine the density of a hypothetical FCC metal with an atomic mass of 42.9 g/mole and atomic radius of 0.132 nm.arrow_forwardFind the average binding energy per nucleon of 2 Mo and 82 Kr. (For the atomic masses, see this table. Enter your answers to at least two decimal places.) 42 36 (a) 92 Mo 42 MeV/nucleon 82 (b) Kr 36 MeV/nucleonarrow_forward
- Calcium has an FCC crystal structure, density of 1.55 Mg/m3, and atomic massof 40.08 g/mole.a. Calculate the volume of the unit cell in cubic meters.b. Calculate the radius of the calcium atom.arrow_forwardNumber 1arrow_forwardThe kinetics of the austenite-to-pearlite transformation obey the Avrami relationship. The fraction transformed- time data is given below. Fraction Transformed Time (s) 0.2 12.6 0.8 28.2 Determine the total time required for 98% of the austenite to transform to pearlite: Write up to 2 DECIMAL PLACES Determine the transformation rate (per minute). Write up to 4 DECIMAL PLACES. Example: 0.0123arrow_forward
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