2. Carbon steel shaft with diameter of 350 mm is heat treated in a gas fired furnace where the gas in the furnace is at 2000 K and convection coefficient of 25 W/m²K. If the initial temperature of the carbon steel shaft is 500K and the specific heat capacity and density of Carbon Steel are 600 J/kg.K and 7800 kg/m' respectively; a. How much time does the ball take to be heated to a temperature of 1500K b. What will be the temperature of the ball after 30 minutes of heating c. If you increase the diameter of the shaft two times what will be the duration required for heating the ball to the required temperature of 1500K

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Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.