Physics
22.07.2020 19:28
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What is the change in internal energy (deltaE ) of a system when it loses 76.0 J
What is the change in internal energy (deltaE ) of a system when it loses 76.0 J of heat while the surroundings perform 29.0 J of work
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villafana36
4,8(28 marks)
-47 J
Explanation:
Given that,
Heat loss = -76 J (negative for loss)
Work done by the surroundings = -29 J
We need to find the change in internal energy of a system.
The first law of thermodynamics is given by :
W is work done by the system
Putting all the values,
Hence, the change in internal energy is -47 J.
25cotahai
4,7(69 marks)
B. A single proton has +1 charge.
*I'm pretty sure*
*I'm pretty sure*
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