A sample of helium gas is contained in a cylinder fitted with a movable piston.Calculate the change in the internal energy of the helium if it absorbs 85 J of heat while it performs 33 J of work through expansion.
A) -52 J
B) +52 J
C) -118 J
D) +118 J
E) +85 J
Correct Answer:
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Q1: Thermochemistry is the study of how _
Q3: What is the change in internal
Q5: What is the change in internal
Q6: What is the change in internal
Q7: According to the first law of thermodynamics,
Q8: What is the change in the energy
Q9: The first law of thermodynamics states that
A)energy
Q10: Heat is best defined as
A)massless substance emitted
Q11: Which of the following statements about energy,
Q22: Internal energy is defined as _
A)the total
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