1) An aluminum washer has an outer radius ro = 1.21 cm and an inner radius of ri

Question

1)

An aluminum washer has an outer radius ro = 1.21 cm and an inner radius of ri = 0.42 cm. The temperature of the washer is raised from 278 K to 621 K. If the mass of the washer is 0.037 g, the molar mass of aluminum is 26.98 g/mol, and the molar specific heat of aluminum is 24.3 J/mol-K, what is the change in the internal energy of the washer? 2)If the coefficient of linear expansion of aluminum is 2.22 Times 10-5 K-1, what is the change in the outer radius of the aluminum washer? What is the change in the inner radius of the aluminum washer? What is the change in area of the washer?

Explanation / Answer

numbers 2 and 3 can be solved using: alpha = L2-L1/(L1x(T2-T1))

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.