Skip to content Home Questions Play Progress Daily Challenge Questions › Chemistry › States of Matter Questions QUESTION Which listed statement best describes a pure crystalline solid that melts without decomposing at a specified pressure? Open question → QUESTION Which phenomenon is opposite to solidification? Open question → QUESTION Identify an example of plasma as a state of matter. Open question → QUESTION At standard temperature and pressure (STP), the value of temperature is: Open question → QUESTION Which listed process helps atmospheric gases enter water and move through it to aquatic organisms? Open question → QUESTION The table lists the arrows and their labels in four proposed state-change diagrams. Which diagram labels every change correctly? A dash means that direction… Open question → QUESTION In the introductory particle model, which statements about the gaseous state are correct? I. Gas particles move rapidly and freely throughout the available volume.… Open question → QUESTION In the introductory particle model of the ordinary states of a substance, inter-particle attractions are strongest in _____ and weakest in _____. Open question → QUESTION Which statement correctly explains the factors affecting the physical state of matter? Open question → QUESTION Why is cooking faster in a pressure cooker? Open question → QUESTION Which listed compound has the highest tabulated boiling point at approximately atmospheric pressure? Open question → QUESTION At approximately one atmosphere, which pairs give approximate normal boiling points? I. Chloroform — 334 K II. Methane — 111.7 K Open question → QUESTION In July 2018, an experiment aboard the International Space Station cooled a cloud of atoms of which chemical element to one ten-millionth of one… Open question → QUESTION At 15 °C and approximately 1.013 bar, which listed gas has a density near 1.87 kg/m³, about 1.5 times that of air, and can… Open question → QUESTION At a given temperature and pressure, which option best describes the usual shape and volume of a liquid? Open question → QUESTION Why do tiny drops of water appear on the outside of a glass filled with chilled water? Open question → QUESTION Who, in the 1860s, undertook a thorough investigation of the gas laws expressing the relationships of pressure, temperature and volume in carbon dioxide? Open question → QUESTION Which is the approximate value of the Avogadro constant, in mol⁻¹? Open question → QUESTION One mole of an ideal gas occupies a volume of ______ litre at 273 K and 1 atm pressure. Open question → QUESTION For an ideal mixture of non-reacting gases, which law states that total pressure equals the sum of the component partial pressures? Open question → QUESTION Who reported in 1662 that, for a fixed amount of gas at constant temperature, decreasing its volume increases its pressure? Open question → QUESTION Consider the following statements about the properties of an ideal gas: 1. The volume of ideal gas molecules is negligible compared to the total… Open question → Home Questions Play Progress 