Question

Higher the temperature of the body __________ is the kinetic energy of the molecules of the body?
a) higher b) lower c) same d) none of these [ ]

Answer 1

Answer:

C

Explanation:

Same because it's does not depend on the temperature

Answer 2

Answer:

The higher the temperature of the body higher is the kinetic energy of the molecules of the body. i.e.option(a).

Explanation:

From the kinetic theory of gas we have,

$KE=\frac{1}{2}kT$         (1)

Where,

KE=kinetic energy of molecules

k=boltzman constant=1.38×10⁻²³J/kelvin

T=temperature of the molecules in kelvin

Since, the k and 1/2  constant then equation (1) becomes;

$KE\propto T$     (2)

Equation (2) indicated that with the increase of temperature the kinetic energy of molecules also increases or vice-versa.

Hence, the higher the temperature of the body higher is the kinetic energy of the molecules of the body. i.e.option(a).