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Which quantity is equal to 50 kilojoules?*
Three forms of energy are*
Which unit is used to express an amount of thermal energy?*
Which list includes three forms of energy?*
Which form of energy is transferred when an ice cube at 0°C is placed in a beaker of water at 50°C?*
Which type of energy is associated with the random motion of atoms and molecules in a sample of air?*
Which form of energy is associated with the random motion of particles in a gas?*
The joule is a unit of*
Which form of energy is associated with the random motion of the particles in a sample of water?*
Which term identifies a form of energy?*
Which form of energy is converted to thermal energy when propane burns in air?*
Base your answers to questions 14 on the information below and on your knowledge of chemistry.
Carbon dioxide, CO2, changes from the solid phase to the gas phase at 1 atm and 194.5 K. In the solid phase, CO2 is often called dry ice. When dry ice sublimes in air at 298 K, the water vapor in the air can condense, forming a fog of small water droplets. This fog is often used for special effects at concerts and in movie-making.
At 1 atm and 190. K, compare the amount of thermal energy in a 1.0-kilogram block of dry ice to the amount of thermal energy in a 2.0-kilogram block of dry ice.*
