Calculate the change in total internal energy for a system that releases 2.59 * 104 kJ of heat and does 6.46 * 104 kJ of work on the surroundings. Enter your answer in scientific notation.

Question

Physics

Eddie Johnston

1 March, 01:19

Calculate the change in total internal energy for a system that releases 2.59 * 104 kJ of heat and does 6.46 * 104 kJ of work on the surroundings. Enter your answer in scientific notation.

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Answers (1)

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Washington · Answer 1

See explanation below

Explanation:

The equation to use for this is the following:

dU = q + w

As the heat is being release, this value is negative, and same here happens with the work done, because it's in the surroundings.

Therefore the change in the energy would be:

dU = - 2.59x10^4 - 6.46^4

dU = - 9.05x10^4 kJ