PROBLEM SOLVING
1. Eight thousand joules of heat is added to a closed system, which then does 5000 joules of work. What is the net change in the internal energy of the system?
Given:
Q = 8000 J
W = 5000J
∆U = ?
2. Ten thousand joules of heat is added to a closed system, which then does 2000 joules of work. What is the net change in the internal energy of the system?
Given:
Q = 10 000 J
W = 2000J
∆U = ?
1. Eight thousand joules of heat is added to a closed system, which then does 5000 joules of work. What is the net change in the internal energy of the system?
Given:
Q = 8000 J
W = 5000J
∆U = ?
2. Ten thousand joules of heat is added to a closed system, which then does 2000 joules of work. What is the net change in the internal energy of the system?
Given:
Q = 10 000 J
W = 2000J
∆U = ?
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Answers & Comments
Answer:
1. 8,000-5,000= 3,000 Joules
2. 10,000- 2,000= 8,000 Joules
Explanation:
Q - W
Since, it is closed system. According to the first law of thermodynamics, minus siya. Correct niyo lang po ako if mali. ty!