Physics Exam > Physics Questions > An amount of heat 1000kJ is transferred from ...
Start Learning for Free
An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1
Correct answer is '750'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
An amount of heat 1000kJ is transferred from a heat reservoir at tempe...
Conventionally, heat given to the system is taken to be positive and heat extracted from the system is taken to be negative,
ΔS = ΔSA + ΔS
ΔS = 750JK-1
The correct answer is: 750
ΔS = ΔSA + ΔS
B
ΔS = 750JK-1
The correct answer is: 750
Most Upvoted Answer
An amount of heat 1000kJ is transferred from a heat reservoir at tempe...
Calculation of Change in Entropy (ΔS) of the Combined System:
1. Calculate the Change in Entropy:
- The change in entropy (ΔS) can be calculated using the formula: ΔS = Q / T, where Q is the heat transferred and T is the temperature.
2. Calculate the Heat Transferred:
- The heat transferred (Q) is given as 1000 kJ.
3. Calculate the Temperatures in Kelvin:
- The initial temperature (TA) is 800K and the final temperature (TB) is 500K.
4. Calculate the Change in Entropy:
- Using the formula, ΔS = Q / T, we get:
ΔS = 1000 kJ / 800K - 1000 kJ / 500K
ΔS = 1.25 kJ/K - 2 kJ/K
ΔS = -0.75 kJ/K
- Since entropy is a state function, the change in entropy is the sum of the changes of the two reservoirs, so the absolute value of -0.75 kJ/K is taken.
ΔS = 0.75 kJ/K = 750 J/K
Therefore, the change in entropy (ΔS) of the combined system is 750 J/K.
1. Calculate the Change in Entropy:
- The change in entropy (ΔS) can be calculated using the formula: ΔS = Q / T, where Q is the heat transferred and T is the temperature.
2. Calculate the Heat Transferred:
- The heat transferred (Q) is given as 1000 kJ.
3. Calculate the Temperatures in Kelvin:
- The initial temperature (TA) is 800K and the final temperature (TB) is 500K.
4. Calculate the Change in Entropy:
- Using the formula, ΔS = Q / T, we get:
ΔS = 1000 kJ / 800K - 1000 kJ / 500K
ΔS = 1.25 kJ/K - 2 kJ/K
ΔS = -0.75 kJ/K
- Since entropy is a state function, the change in entropy is the sum of the changes of the two reservoirs, so the absolute value of -0.75 kJ/K is taken.
ΔS = 0.75 kJ/K = 750 J/K
Therefore, the change in entropy (ΔS) of the combined system is 750 J/K.
|
Explore Courses for Physics exam
|
|
Similar Physics Doubts
An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer?
Question Description
An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer?.
An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer?.
Solutions for An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? in English & in Hindi are available as part of our courses for Physics.
Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free.
Here you can find the meaning of An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer?, a detailed solution for An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? has been provided alongside types of An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice An amount of heat 1000kJ is transferred from a heat reservoir at temperature TA to another heat reservoir at temperature TB . If TA = 800K and and TB = 500K, what is the change in entropy ΔS of the combined system in JK-1Correct answer is '750'. Can you explain this answer? tests, examples and also practice Physics tests.
|
|
Explore Courses for Physics exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup