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  • 16-07-2020
  • Physics
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What is the increase in the internal energy of the system, if it absorbs 500 cal and at the same time does 85J work on its surroundings? (1 cal = 4.18J)

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MathPhys
MathPhys MathPhys
  • 17-07-2020

Answer:

2005 J

Explanation:

500 cal × (4.18 J/cal) = 2090 J

ΔU = q + w

ΔU = 2090 J − 85 J

ΔU = 2005 J

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