The resistance of an electrolyte varies with temperature T as RT = R01+αT, where R0 and α are constants. A constant potential difference V is applied to the two electrodes (each of surface area A) which are dipped in this electrolyte. If T0 it the temperature of the surroundings, the loss of heat to the surroundings per unit surface area per unit time is governed by the same relation H=kT−T0A, then the steady state temperature is
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a
V2+kAR0TkR0A−αV2
b
V2kR0A−αV2
c
V2RkA
d
None of these
answer is A.
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Detailed Solution
Power generated in the resistance is being lost in the environment.At steady state, V2RT = kT−T0AGiven R = R01+αT, V2R01+αT = kT−T0A,T−V2αR0 +kA = V2αR0 +kAT0, T=V2+kAR0TkR0A−αV2