Question 1: Answer all parts of the questions A) The graph shows the temperature of a pure subs substance changes from the solid to the liquid to the gas phase. The graph shows the temperature of a pure substance as it is heated at a constant rate in an open vessel at normal atmospheric pressure. The substance changes from the solid to the liquid to the gas phase B) The substance is at its normal freezing point at time _ Which of the following best describes what happens to the substance between t4 and t5? 14 The average intermolecular distance is decreasing. 12 The temperature of the substance is increasing. 13 The molecules are leaving the liquid phase t1 The vapor pressure of the substance is decreasing. The solid and liquid phases coexist in equilibrium. C) The diagram represents a closed energy system consisting of air and equal masses of copper, granite, and water in a perfectly insulated container. The temperatures were taken at the time the materials were placed inside the closed system. D) The diagram represents a closed energy system consisting of air and equal masses of copper, granite, and water in a perfectly insulated container. T system. e placed inside the clos 40'C 35"C Air Tem 40 C Copper " 25 C CLOSED ENERGY SYSTEM (Not drawn to scale) CLOSED ENERGY SYSTEM Which material in the energy system has the highest specific heat? (Not drawn to scale) Granite As time passes, the total energy in the system will Glass Increase Dry air remain the same Water decrease fluctuate F ) The diagram represents a closed energy system consisting of air and equal masses of copper, granite, and water in a perfectly insulated container. The temperatures were taken at the time the materials were placed inside the closed F) When the molecules in a body system. move with increased speed, the body Granite 40 0 will change from a _. Air Temp Copper 60 C Group of answer choices 25'C CLOSED ENERGY SYSTEM (Not drawn to scale) liquid at a low temperature to a In the first day after the materials were placed in the system, the temperature of the water would probably _ liquid at a higher temperature decrease gas to a solid remain the same solid to a liquid increase liquid to a solid