PHY 241 ASU Diameter Temperature & Mass University Physics Exercises

Question Description

TK = TC + 273 L = LO + a LO (delta)T Q = m c (delta)T Q = m L

(delta)E = Q – W W = (integral) p dV _____________________________________________________________________________

  1. An aluminum plate has a circular hole with a diameter of 2.500cm at 50.00°C. Find the diameter of the hole if the plate is heated up to 200.00°C. (2 points)

(Take aAl = 23 x 10-6 / K)

  1. An ice cube of mass 25.0g at a temperature of -25.00°C is dropped into an insulated beaker that contains 250.0g of water at a temperature of 75.0°C. What is the final temperature? (3 points)

CICE = 2.22 J/g.K

CW = 4.18 J/g.K

LF = 333 J/g

LV= 2256 J/g

  1. A quantity of gas in a closed container undergoes the cyclic process ABCA, as described below. a) Sketch the corresponding processes on a p-V plot. (1 point); b) Calculate the heat added to the gas during one complete cycle. (4 points)

pA = 100 N/m2; VA = 5.00 m2

pB = 100 N/m2; VB = 10.00 m2

pC = 200 N/m2; VC = 10.00 m2

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