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Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ?
Most Upvoted Answer
Two bodies A and B have same emissivity are placed in an evacuated ves...
Q=¶ T^4 At
where¶=5.67×10^-8W/m^2K^4
Q A/Qb=Ta^4/Tb^4
QA/Qb= (327+273)^4/(27+273)^4
QA/Qb= 600^4/300^4
QA/Qb= 8
where¶=5.67×10^-8W/m^2K^4
Q A/Qb=Ta^4/Tb^4
QA/Qb= (327+273)^4/(27+273)^4
QA/Qb= 600^4/300^4
QA/Qb= 8
Community Answer
Two bodies A and B have same emissivity are placed in an evacuated ves...
Explanation:
- Heat transfer between bodies A and B:
- Both bodies A and B are in an evacuated vessel at the same temperature of 27°C.
- Body A is at a higher temperature of 327°C compared to body B at 27°C.
- Heat transfer occurs from body A to body B due to the temperature difference.
- Rate of heat loss:
- The rate of heat loss is given by the Stefan-Boltzmann law, which states that the rate of heat transfer between two bodies is proportional to the difference in their temperatures raised to the fourth power.
- Mathematically, the rate of heat loss from body A to body B is proportional to (327^4 - 27^4).
- Calculating the ratio:
- Let's calculate the rate of heat loss from body A to body B using the formula mentioned above.
- (327^4 - 27^4) = 2.93 x 10^12 - 531441
- (327^4 - 27^4) = 2.929 x 10^12
- So, the ratio of heat loss from body A to body B is approximately 2.929 x 10^12 : 1.
- Conclusion:
- The rate of heat loss from body A to body B will be significantly higher due to the large temperature difference between the two bodies.
- Body A will lose heat at a much faster rate compared to body B in this scenario.
- Heat transfer between bodies A and B:
- Both bodies A and B are in an evacuated vessel at the same temperature of 27°C.
- Body A is at a higher temperature of 327°C compared to body B at 27°C.
- Heat transfer occurs from body A to body B due to the temperature difference.
- Rate of heat loss:
- The rate of heat loss is given by the Stefan-Boltzmann law, which states that the rate of heat transfer between two bodies is proportional to the difference in their temperatures raised to the fourth power.
- Mathematically, the rate of heat loss from body A to body B is proportional to (327^4 - 27^4).
- Calculating the ratio:
- Let's calculate the rate of heat loss from body A to body B using the formula mentioned above.
- (327^4 - 27^4) = 2.93 x 10^12 - 531441
- (327^4 - 27^4) = 2.929 x 10^12
- So, the ratio of heat loss from body A to body B is approximately 2.929 x 10^12 : 1.
- Conclusion:
- The rate of heat loss from body A to body B will be significantly higher due to the large temperature difference between the two bodies.
- Body A will lose heat at a much faster rate compared to body B in this scenario.
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Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ?
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Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ?.
Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two bodies A and B have same emissivity are placed in an evacuated vessel maintained at temperature 27 degree centigrade the temperature of a is 327 C and that of B is 27 C . the rates of heat loss from A to B will nearly be in the ratio ?.
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