Heat Transfer Flashcards
relation between linear,areal,volume expansion constant∝
Linear expansion constant:- ∝
Areal expansion constant:- 2∝
Volume expansion constant:- 3∝
stress formula
stress= Force/Area
if temperature increases, Time period of the pendulum clock decreases/increases and the clock runs faster/slower, and hence gains/loses time
if temperature increases, Time period of the pendulum clock increases and the clock runs slower, and hence loses time
if temperature decreases, Time period of the pendulum clock decreases/increases and the clock runs faster/slower, and hence gains/loses time
if temperature decreases, Time period of the pendulum clock decreases and the clock runs faster, and hence gains time
latent heat of ice to water
80 cal per gram
latend heat of water to steam
540 cal per gram
principle of calorimeter for two objects in contact and conducting heat and achieve a common temperature
m1 S1 (T1-T) = m2 S2 (T-T2)
heat capacity of water and ice
heat cacpacity of water = 1 cal per cram celcius
heat cacpacity of ice= 0.5 cal per cram celcius
whats the faster mose of heat transfer
radiation
rateflow of heat through ever crss section remains constant/changes
constant
rate of flow of heat
H = d
comparing V , I , R to the heat conduction sytem! whats what?
I = H(rate of flow of heat)
V= (T2-T1) (Change in temperature)
R= L/KA
thickness of ice formed on the lake formula
black body need not be black in color! true or false
true
can a black body five maximum radiation at many temperature?
no it gives max radiation at only a particular temperature
stefans law( power radiated by a body)
rate of colling derived from stefans law
newton’s law of cooling
θs represent the temperature of the surrounding
θb represents the temperature of body
weins displacement law
list the main formula, draw the of T and λ and what does the area under that graph represents
the area under the graph represents the total intensity at that temperature
