Part of eval main bdd945f six, agent version bdd945f
Q. A copper block of mass 2.5 kg is heated in a furnace to a temperature of 500 °C and then placed on a large ice block. Specific heat of copper = 0.39 J g⁻¹ K⁻¹; heat of fusion of water = 335 J g⁻¹. What is the maximum amount of ice that can melt, in kg? expects 1.5 kg
draft 24: failed while solving — RuntimeError: no equation determines the mass of ice from what is known the engine knows: known: mass of copper; temperature at first of copper; specific heat capacity of copper; latent heat of ice; temperature at first of ice; temperature after of ice; heat_warms_a_body(ice): heat to warm of ice == ((mass of ice * specific heat capacity of ice) * (temperature after of ice - temperature at first of ice)) — not yet known: heat to warm of ice; specific heat capacity of ice; heat_changes_a_phase(ice): heat to change phase of ice == (mass of ice * latent heat of ice) — not yet known: heat to change phase of ice
Latest draft
question.rb1 question :copper_block_on_ice do2 kind :numerical3 describes "A copper block of %{copper_mass} is heated in a furnace to a temperature of %{copper_temp} and then placed on a large ice block. Specific heat of copper = %{copper_heat}; heat of fusion of water = %{fusion}. %{ice_melt}, in kg?"4 given copper_mass: "2.5 kg"5 given copper_temp: "500 °C"6 given copper_heat: "0.39 J g-1 K-1"7 given fusion: "335 J g-1"8 asks ice_melt: "What is the maximum amount of ice that can melt"9 end
solution.rb1 solve :copper_block_on_ice, using: Calorimetry do2 objects :copper, :ice3 4 take copper_mass: copper.mass5 take copper_temp: copper.temperature_at_first6 take copper_heat: copper.specific_heat_capacity7 take fusion: ice.latent_heat8 9 deduce_from "placed on a large ice block", ice.temperature_at_first => "0 °C"10 deduce_from "maximum amount of ice that can melt", copper.heat_to_warm => -(ice.heat_to_change_phase), ice.temperature_after => "0 °C"11 12 13 14 15 16 ice_melt = ice.mass17 answer ice_melt:, in: "kg", figures: 218 19 conclusion "The copper cools to 0 °C, giving up heat that melts ice; the maximum melt occurs when all the copper's heat is used."20 end