Temperature and Heat Answers
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1
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Which best describes the difference between internal and thermal energy?
A
Internal energy is the total potential energy in a substance, and thermal energy is the total kinetic energy in a substance.B
Thermal energy is the total potential energy in a substance, and internal energy is the total kinetic energy in a substance.C
Internal energy is the total potential and kinetic energies in a substance, and thermal energy is the part of internal energy that can be transferred to another substance.D
Thermal energy is the total potential and kinetic energies in a substance, and internal energy is the part of internal energy that can be transferred to another substance.2
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Gold atoms are heavier than iron atoms.Iron atoms are heavier than gold atoms.Gold atoms have the same mass as iron atoms.
A
Gold atoms are heavier than iron atoms.B
X Iron atoms are heavier than gold atoms.C
Gold atoms have the same mass as iron atoms.3
How much heat is needed to change the temperature of 3 grams of gold (c = 0.129 ) from 21°C to 363°C? The answer is expressed to the nearest whole number.
A
121 joulesB
132 joulesC
140 joulesD
149 joulesDid you find these answers helpful?
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