What is the Temperature Difference Between Two Bodies Connected by a Rod?

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SUMMARY

The discussion focuses on calculating the temperature difference between two bodies connected by a rod, utilizing the principles of thermal conduction. The relevant equation for heat transfer is H = kA * (ΔT/Δx), which equates to mc * dT/dt for both bodies. The user attempts to integrate the equation to find the temperature difference over time but encounters difficulties, resulting in an incorrect expression for temperature change. The correct solution is (T2 - T1)e^(-ft), where f = KA(m1s1 + m2s2) / (L(m1s1m2s2)).

PREREQUISITES
  • Understanding of thermal conduction principles
  • Familiarity with the heat transfer equation H = kA * (ΔT/Δx)
  • Basic knowledge of calculus for integration
  • Concept of specific heat capacity and its role in temperature change
NEXT STEPS
  • Study the derivation of the heat transfer equation H = kA * (ΔT/Δx)
  • Learn about the integration techniques for solving differential equations in thermal dynamics
  • Explore the concept of thermal equilibrium and its implications in heat transfer problems
  • Investigate the role of specific heat capacities in energy transfer between bodies
USEFUL FOR

Students and professionals in physics, engineering, or thermodynamics who are dealing with heat transfer problems and require a deeper understanding of thermal conduction principles.

aviravir1
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Two bodies of masses m1 and m2 and specific heat capacities s1and s2 are connected by a rod of length L crossectional area A,thermal conductivty K and negligible heat capacity.The whole system is thermally insulated.At time t=0 the temperature of the first body is T1and the temperature of second body is T2(T2>T1).Find the temp. difference betw. 2 bodies at time t.
 
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What relevant equations did you learn? What attempt did you make at solving this question?
 
well actually i m not able to move an inch in it...

can u please give me some solid hint so that i can proceed..
 
please help...giv some hint ...how shud i proceed
 
why no one is replying...atleast give some hint how to do it..so that i may proceed...
 
The rate of heat transfer, given by H=kA*delta-T/delta-x, is equal to mc*dT/dt for both objects connected by the rod, only one rod's temperature goes down while the other's goes up. Depending on whether your class is calculus-based, you can either calculate the power transferred in time t and set it equal to mc*delta-T for both objects, or you can use calculus to get a more accurate solution.
 
actually i did lik this(see the attachment)

firstly is it correct

secondly wen i tried integrating it its not giving the ans.
 

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please help
 
please help...i m in dire need

im getting ans as (T2-T1)e(1-f)t

wer f=KA(m1s1+m2s2)/(L(m1s1m2s2))

wer as ans is (T2-T1)e-ft

wer f=KA(m1s1+m2s2)/(L(m1s1m2s2))
 

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