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If 500 J of heat is added to a system and it does 200 J of work, what is the cha
If 500 J of heat is added to a system and it does 200 J of work, what is the change in internal energy? (2022)
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Practice Questions
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Q1
If 500 J of heat is added to a system and it does 200 J of work, what is the change in internal energy? (2022)
300 J
200 J
500 J
700 J
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According to the first law of thermodynamics, ΔU = Q - W. Here, ΔU = 500 J - 200 J = 300 J.
Questions & Step-by-step Solutions
1 item
Q
Q: If 500 J of heat is added to a system and it does 200 J of work, what is the change in internal energy? (2022)
Solution:
According to the first law of thermodynamics, ΔU = Q - W. Here, ΔU = 500 J - 200 J = 300 J.
Steps: 5
Show Steps
Step 1: Identify the amount of heat added to the system, which is 500 J. This is represented as Q.
Step 2: Identify the amount of work done by the system, which is 200 J. This is represented as W.
Step 3: Use the formula from the first law of thermodynamics, which is ΔU = Q - W.
Step 4: Substitute the values into the formula: ΔU = 500 J - 200 J.
Step 5: Calculate the result: ΔU = 300 J.
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