PHYSICAL QUANTITY

Temperature: formulas and units of measurement

Temperature: symbol T, t, unit K, °C. Formulas and explanations for MCT and thermodynamics.

T, tkelvin, degree Celsius

KEY CONNECTIONS

Formulas

T = 273 + t

⟨E⟩ = (3/2)kT

p = nkT

vkv = √(3RT / M)

pV = (m/M)RT

pV / T = const

p / T = const at V = const

V / T = const at p = const

Note: The temperature increments are equal: ΔT in Kelvin is numerically equal to Δt in degrees Celsius.

NOTATION

: Temperature is a measure of the thermal state of the body.
: The average kinetic energy of a particle is the average energy of thermal motion of one particle.
: Boltzmann's constant is the coefficient of correlation between temperature and particle energy.
: Pressure is the force per unit surface area.
: Concentration is the number of particles per unit volume.
: Root mean square velocity is a characteristic of the thermal motion of gas particles.
: The universal gas constant is the coefficient of connection between the parameters of an ideal gas.
: Molar mass is the mass of one mole of a substance.
: Volume is the size of the area of space occupied by a body.
: Mass is a scalar physical quantity that is a measure of the inertia of a body.

THEORY

PRACTICE

Topics in order: the concepts, quantities and formulas of a lesson with explanations and examples.

Statements, answer options and a detailed walkthrough for every topic of the course.

A 10-question check-up, exercises with answer checking, and saved progress.