This question requires a numeric or algebraic answer. In order to receive full c

Question

This question requires a numeric or algebraic answer. In order to receive full credit for this problem, you must show all your work. To show your work for this problem, you may scan nearly handwritten work or type up your work in MS Word using the equation editor and submit it using the Midterm Dropbox. you should make your submissions after you complete the exam. A 100 g ice cube at -10 degree C is placed in a aluminum cup whose initial temperature is 70 degree C. The system comes to an equilibrium temperature of 20 degree C. What is the mass of the cup? This question requires a numeric or algebraic answer. In order to receive full credit for this problem, you must show all your work. To show your work for this problem, you may scan nearly handwritten work or type up your work in MS Word using the equation editor and submit it using the Midterm Dropbox. you should make your submissions after you complete the exam. A gas is compressed from 600 cm^3 to 200 cm^3 at a constant pressure of 400 kPa. At the same time, 100 J of heat energy is transferred out of the gas. What is the change in the thermal energy of the gas during this process

Explanation / Answer

0.1 kg ( 0-{-10}) 2090 + 0.1 ( 333.55 x 10^3 J/kg) + 0.1 (20 ) ( 4180) = m (50 ) (900)

0.1 ( 20900 + 333550 + 83600) = m ( 45000)

m = 0.973 kg-------mass of cup

b)work done = (400 x 10^3 ) (200-600) x 10^ -6 = -4 x ( 40) = -160 J

Q = U + W

-100= U -160

U = 60 J

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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