3 years ago

A system has 600 j of heat and does 300 j of work. What is the change in internal energy?

Physics

1 answer:

Andreas93 [3]3 years ago

5 0

Answer:

The final energy is 1,700 J

Explanation: According to first law of thermodynamics:

=Final energy-initial energy=Change in internal energy

q = heat absorbed or released

w = work done by or on the system

w = work done by the system= {Work done by the system is negative as the final volume is greater than initial volume}

q = +500J {Heat absorbed by the system is positive}

w = work done by the system = -300J

Explanation:

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Jen pushed a box for a distance of 80m with 20 N of force. How much work did she do?

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The answer is 1,600 J.

A work (W) can be expressed as a product of a force (F) and a distance (d):
W = F · d<span>

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W = ?
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