Which defines the average kinetic energy of a systems particles?
A.
Density
B.
Pressure
C.
Temperature
D.
Volume
Answer: The correct option is C.
Explanation: Relation of average kinetic energy is given as:
\(K_{avg}=\frac{3R}{2N_A}T\)
Where,
R = Universal gas constant
\(N_A\) = Avogadro's Number
T = temperature
From the above equation,
\(K_{avg}\propto T\)
Hence, average kinetic energy of the particles id defined by Temperature.
Answer : The correct option is, (C) Temperature
Explanation :
Average kinetic energy : Average kinetic energy of the gas particles are directly proportional to the temperature of the gas particles.
Formula used for the average kinetic energy is :
\(K_{avg}=\frac{3RT}{2N_a}\)
where,
\(K_{avg}\) = average kinetic energy
R = gas constant
\(N_a\) = Avogadro's number or constant
T = temperature of the system
From the formula, we conclude that the average kinetic energy is directly proportional to the temperature. That means temperature defines the average kinetic energy of a systems particles.
Therefore, the correct option is, (C) Temperature