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Author Question: When 10 kcal of heat is added to 2.0 kg of a substance, its temperature increases 20 C. What is the ... (Read 109 times)

appyboo

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on: Jul 28, 2018
When 10 kcal of heat is added to 2.0 kg of a substance, its temperature increases 20 C. What is the specific heat of the substance?

Question 2

How can a nucleus be described by particular values of A, Z and N when the mass of the nucleus is not equal to Zmp + Nmn, where mp and mn are the masses of free protons and neutrons?
 a. A, Z and N have no intrinsic meaning.
  b. A, Z and N describe the number of particles of given types, but mass has no meaning when part of the mass is elsewhere in the universe.
  c. A, Z and N describe the number of particles an ideal rather than a real nucleus would have.
  d. A, Z and N describe the number of particles of given types in the nucleus, but not their masses in a bound state.
  e. A, Z and N describe the number of particles of given types in the nucleus since the missing mass consists of electrons that are also present in the nucleus.


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C.mcnichol98

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Reply #1 on: Jul 28, 2018
Answer to Question 1

0.25 kcal/kg  C

Answer to Question 2

d


appyboo

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Reply #2 on: Jul 28, 2018
TY


C.mcnichol98

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Reply #3 on: Jul 28, 2018
You're welcome


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