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MMLU-Pro / 11593 / Copper normally solidifies at a temperature of 1356°K, but canexist in the…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Copper normally solidifies at a temperature of 1356°K, but canexist in the super-cooled liquid form up to a temperature of1120°K, after which it starts solidifying spontaneously. Determine the entropy change for the solidification of copper atits temperature of spontaneous solidification (1120°K). Use the following data to solve the problem: Data forCu(1)\rightleftharpoons Cu(s) CpCu(1)= 7.50 cal deg^-1 mole^-1 C_p Cu(s) = 5.41 + 1.50 × 10^-3T cal deg^-1 mole^-1 \DeltaH^0 = - 3100 cal

category

engineering

options

  1. - 2.50 cal deg^-1 mole^-1
  2. - 2.09 cal deg^-1 mole^-1
  3. - 2.23 cal deg^-1 mole^-1
  4. - 1.95 cal deg^-1 mole^-1
  5. - 2.28 cal deg^-1 mole^-1
  6. - 3.10 cal deg^-1 mole^-1
  7. 3.00 cal deg^-1 mole^-1
  8. 2.09 cal deg^-1 mole^-1
  9. 0.046 cal deg^-1 mole^-1
  10. - 1.75 cal deg^-1 mole^-1

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
11593
task_id
b772be67-9c8f-54d3-b13d-56420384ec86
task_key
default--test--11593
task_revision_id
1
config / split
default / test

Official source

initial import