English

The Kinetic Energy per Molecule of a Gs at Temperature T is _______

Advertisements
Advertisements

Question

The kinetic energy per molecule of a gs at temperature T is ________.

(a) `(3/2)RT`

(b) `(3/2)K_BT`

(c) `(2/3) RT`

(d) `(3/2)("RT"/M)`

Advertisements

Solution

`(3/2)K_BT`

ICE of 1 module = `3/2 K_BT`

shaalaa.com
  Is there an error in this question or solution?
2017-2018 (March)

APPEARS IN

RELATED QUESTIONS

The dimensions of emissive power are ______.


The light from the Sun is found to have a maximum intensity near the wavelength of 470 nm. Assuming the surface of the Sun as a black body, the temperature of the Sun is _____________.

[Wien's constant b = 2 .898 x l0- 3mK]


Answer the following:

There were two fixed points in the original Celsius scale as mentioned above which were assigned the number 0 °C and 100 °C respectively. On the absolute scale, one of the fixed points is the triple-point of water, which on the Kelvin absolute scale is assigned the number 273.16 K. What is the other fixed point on this (Kelvin) scale?


The substance which allows heat radiations to pass through is _______.

(A) iron

(B) water vapour

(C) wood

(D) dry air


It is said that mercury is used in defining the temperature scale because it expands uniformly with  temperature. If the temperature scale is not yet defined, is it logical to say that a substance expands uniformly with temperature?


Which of the curves in the following figure represents the relation between Celsius and Fahrenheit temperatures?


Which of the following pairs may give equal numerical values of the temperature of a body?


If the temperature of a uniform rod is slightly increased by ∆t, its moment of inertia I about a line parallel to itself will increase by


The temperature of water at the surface of a deep lake is 2°C. The temperature expected at the bottom is


In a calorimeter, the heat given by the hot object is assumed to be equal to the heat taken by the cold object. Does it mean that heat of the two objects taken together remains constant?


Water equivalent of a body is measured in ___________ .


Which of the following pairs of physical quantities may be represented in the same unit?


The heat capacity of a body depends on

(a) the heat given

(b) the temperature raised

(c) the mass of the body

(d) the material of the body


A railway track (made of iron) is laid in winter when the average temperature is 18°C. The track consists of sections of 12.0 m placed one after the other. How much gap should be left between two such sections, so that there is no compression during summer when the maximum temperature rises to 48°C? Coefficient of linear expansion of iron = 11 × 10–6 °C–1.


The volume of a glass vessel is 1000 cc at 20°C. What volume of mercury should be poured into it at this temperature so that the volume of the remaining space does not change with temperature? Coefficients of cubical expansion of mercury and glass are 1.8 × 10–6 °C–1 and 9.0 × 10–6 °C–1 , respectively.


A steel ball that is initially at a pressure of 1.0 × 10Pa is heated from 20°C to 120°C, keeping its volume constant.
Find the pressure inside the ball. Coefficient of linear expansion of steel = 12 × 10–6 °C–1and bulk modulus of steel = 1.6 × 1011 Nm–2.


‘An object contains more heat’- is it a right statement? If not why?


Define one mole.


Our normal body temperature is ______.


Two objects are said to be in thermal contact if they can exchange heat energy.


One day in 1922, the air temperature was measured at 59°C in the shade in Libya ______.


Analogy

Evaporation:: 100°C: Freezing:: ______.


The degree of hotness and coldness of a body is called ______.  


The average kinetic energy of molecules of a gas is directly related to which physical quantity?


1 calorie is equal to how many joules?


What is the approximate interatomic spacing in gases at NTP (Normal Temperature and Pressure)?


Which of the following correctly differentiates heat from temperature?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×