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19. A container with 100.0 g of ice at 0 °C is placed in a humid room whose temperature is 40 °C. The ice melts as water
Posted: Mon May 16, 2022 11:14 pm
by answerhappygod
- 19 A Container With 100 0 G Of Ice At 0 C Is Placed In A Humid Room Whose Temperature Is 40 C The Ice Melts As Water 1 (135.82 KiB) Viewed 77 times
19. A container with 100.0 g of ice at 0 °C is placed in a humid room whose temperature is 40 °C. The ice melts as water vapor condenses into the container. Assuming that all the heat transferred to the container comes from condensation, how much water will have condensed in the container once all the ice is melted and has reached 40 °C? The heat of fusion of ice is 334 J gand the heat of vaporization of water is 2260 Jg-1. (A) 13.8 g (B) 14.8 g (C) 22.2 g (D) 677 g 20. The standard enthalpy of formation of hematite, Fe2O3(s), is –825.5 kJ mol-?. What is the standard enthalpy of reaction for the reduction of hematite with carbon monoxide to give metallic iron as shown below? AH°rxn = –283.0 kJ mol-1 CO(g) + 1/2O2(g) → CO2(g) Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) AHºryn ??? (A) -23.5 kJ mol-1 (B) -542.5 kJ mol-1 (C) -849.0 kJ mol-1 (D) –1674.5 kJ mol-1