A system receives 525 J of heat and delivers 525 J of work to its surroundings. What is the change in internal energy of the system?

Answer 1

#"0 J"#

On receiving #"525 J"# of heat the internal energy of the system is increased by #"525 J"#
When the system now does #"525 J"# of work its internal energy is decreased by #"525 J"#

∴ There is no overall change in internal energy.

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Answer 2

The change in internal energy of the system is 0 J.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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