4. Two iron blocks of equal size and mass are kept in contact with each other as shown in the figure. The block on the left side has been heated to 100^circ mathrm(C) and placed in contact with the block on the right side which has been cooled to 0^circ mathrm(C) . At thermal equilibrium what would the temperature of the block measure on the left and right side? A. 0^circ mathrm(C), 0^circ mathrm(C) B. 100^circ mathrm(C), 0^circ mathrm(C) C. 50^circ mathrm(C), 50^circ mathrm(C) D. 75^circ mathrm(C), 25^circ mathrm(C)

Question

4. Two iron blocks of equal size and mass are kept in contact with each other as shown in the figure. The block on the left side has been heated to 100^circ mathrm(C) and placed in contact with the block on the right side which has been cooled to 0^circ mathrm(C) . At thermal equilibrium what would the temperature of the block measure on the left and right side? A. 0^circ mathrm(C), 0^circ mathrm(C) B. 100^circ mathrm(C), 0^circ mathrm(C) C. 50^circ mathrm(C), 50^circ mathrm(C) D. 75^circ mathrm(C), 25^circ mathrm(C)

Answer 1

When two objects of equal mass and material are in thermal contact, they will exchange heat until they reach thermal equilibrium. Given that both blocks are iron and have equal mass, the final temperature will be the average of the initial temperatures.

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