Advertisements
Advertisements
प्रश्न
The susceptibility of magnesium at 300 K is 2.4 x 10-5. At what temperature will the susceptibility increase to 3.6 x 10-5?
Advertisements
उत्तर
T1=300K
x1=2.4x10-5
x2=3.6x10-5
T2=?
xT=costant
∴x1T1=x2T2
`:.T_2=(x_1T_1)/x_2`
`=(2.4xx10^-5xx300)/(3.6xx10^-5)`
T2 = 200K
APPEARS IN
संबंधित प्रश्न
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?
What is the temperature of the triple-point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale?
A body cools from 62°C to 54°C in 10 minutes and to 48°C in the next 10 minutes. Find the temperature of the surroundings.
The substance which allows heat radiations to pass through is _______.
(A) iron
(B) water vapour
(C) wood
(D) dry air
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)`
A spherical shell is heated. The volume changes according to the equation Vθ = V0 (1 + γθ). Does the volume refer to the volume enclosed by the shell or the volume of the material making up the shell?
Which of the curves in the following figure represents the relation between Celsius and Fahrenheit temperatures?
A body A is placed on a railway platform and an identical body B in a moving train. Which of the following energies of B are greater than those of A, as seen from the ground?
(a) Kinetic
(b) Total
(c) Mechanical
(d) Internal
Should a thermometer bulb have large heat capacity or small heat capacity?
Two bodies at different temperatures are mixed in a calorimeter. Which of the following quantities remains conserved?
If heat is supplied to a solid, its temperature
(a) must increase
(b) may increase
(c) may remain constant
(d) may decrease
Heat and work are equivalent. This means, ____________ .
A resistance thermometer reads R = 20.0 Ω, 27.5 Ω, and 50.0 Ω at the ice point (0°C), the steam point (100°C) and the zinc point (420°C), respectively. Assuming that the resistance varies with temperature as Rθ = R0 (1 + αθ + βθ2), find the values of R0, α and β. Here θ represents the temperature on the Celsius scale.
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.
In hot summer after a bath, the body’s __________.
‘An object contains more heat’- is it a right statement? If not why?
Explain the meaning of heat and work with suitable examples.
Our normal body temperature is ______.
The normal temperature of our body is 37°C.
The average kinetic energy of molecules of a gas is directly related to which physical quantity?
When two bodies at different temperatures are placed in contact, heat flows from ______.
What is the dimensional formula of heat?
The concept of thermal equilibrium, where heat flows between bodies until they reach the same temperature, is the basis of which law of thermodynamics?
