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In the curing of rubber tires, the vulcanization process requires that a tire carcass, originally at 295 K, be heated so that its central layer reaches a minimum temperature of 410 K. This heating is accomplished by introducing steam at 435 K to both sides. Determine the time required, after introducing steam, for a 3 cm tire carcass to reach the specified central temperature condition.Properties of the rubber: k = 0.151 W/m-K, cp = 200 J/kg-K, p = 1201 kg/m³, a = 6.19 × 10-8m²/s. [USE temperature-time chart.]

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