WAEC SSCE - Physics - 1990 (Objective)

Question 1 Report

The absolute zero temperature is defined as the temperature at which

thermal motion ceases

the temperature of a gas is 273^oC

ice melts

the volume of a real gas is maximum

the pressure of a real gas is maximum

Answer Details

The absolute zero temperature is defined as the temperature at which thermal motion ceases. This is the lowest possible temperature that can be reached, and it is equivalent to zero Kelvin (0 K) or approximately -273.15 degrees Celsius (-459.67 degrees Fahrenheit). At this temperature, the particles that make up matter have the lowest possible energy and therefore stop moving completely. This is because temperature is a measure of the average kinetic energy of particles in a substance, and at absolute zero, the kinetic energy is zero. This concept is important in many areas of physics, such as thermodynamics and quantum mechanics, and it has practical applications in areas such as cryogenics, where temperatures approaching absolute zero are used to achieve superconductivity and other unique properties of matter.






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