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Two bodies A and B of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly in the ratio?
Most Upvoted Answer
Two bodies A and B of same emissivity are placed in an evacuated vesse...
To= 27+273= 300
Ta=320+273=593
Tb=127+273=400
The rate of heat loss is directly proportional to the
Ea/Eb=(Ta^4 - To^4) / (Tb - To^4).
Ta=320+273=593
Tb=127+273=400
The rate of heat loss is directly proportional to the
Ea/Eb=(Ta^4 - To^4) / (Tb - To^4).
Community Answer
Two bodies A and B of same emissivity are placed in an evacuated vesse...
Explanation of Heat Loss Ratio:
- The rate of heat loss from a body is given by the formula: Q = εσA(T^4 - T0^4), where ε is the emissivity, σ is the Stefan-Boltzmann constant, A is the surface area, T is the temperature of the body, and T0 is the temperature of the surroundings.
Calculating Heat Loss from Body A:
- Let's assume the surface area of both bodies A and B is the same.
- Temperature of body A (T_A) = 320 C
- Temperature of surroundings (T0) = 27 C
- According to the formula, Q_A = εσA(T_A^4 - T0^4)
Calculating Heat Loss from Body B:
- Temperature of body B (T_B) = 127 C
- According to the formula, Q_B = εσA(T_B^4 - T0^4)
Ratio of Heat Loss:
- Now, to find the ratio of heat loss from bodies A and B, we can calculate Q_A/Q_B.
- Substitute the values of Q_A and Q_B in the ratio.
Conclusion:
- The ratio of the rates of heat loss from bodies A and B will be nearly in the ratio of (320^4 - 27^4) : (127^4 - 27^4).
- This ratio will give us an understanding of how the temperatures of the bodies affect the rate of heat loss, considering they have the same emissivity and surface area.
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Two bodies A and B of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly in the ratio?
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Two bodies A and B of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly 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 of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly 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 of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly in the ratio?.
Two bodies A and B of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly 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 of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly 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 of same emissivity are placed in an evacuated vessel maintained at a temperature of 27 C. the temperature of A is 320 C and that of B is 127 C. the rates of heat loss from A and B will be nearly in the ratio?.
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