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Molecular Physics | Thermodynamics
how to perform a reversible isobaric process if it is possible whether practically or theoretically ?
Molecular Physics | Thermodynamics
Kiwis love a summer barbecue, but there is nothing worse than having a hot drink
on a hot day. Luckily, you happen to know a bit about thermodynamics and heat
transfer, so have decided to design yourself a chilly-bin. You have six 355mL cans of
drink at 8°C that you don’t want to get above 10°C for the three hours before the
barbecue (the ambient temperature is 28°C), but you don’t have any ice. The air
over the outside of your chilly bin can be assumed to have a heat transfer coefficient
of 5 W/m2
K. Show a sketch, your calculations (and any assumptions you have made)
and provide a 250 word discussion justifying your design.
on a hot day. Luckily, you happen to know a bit about thermodynamics and heat
transfer, so have decided to design yourself a chilly-bin. You have six 355mL cans of
drink at 8°C that you don’t want to get above 10°C for the three hours before the
barbecue (the ambient temperature is 28°C), but you don’t have any ice. The air
over the outside of your chilly bin can be assumed to have a heat transfer coefficient
of 5 W/m2
K. Show a sketch, your calculations (and any assumptions you have made)
and provide a 250 word discussion justifying your design.
Molecular Physics | Thermodynamics
Two closed containers of equal volume filled with air at pressure P and temperature T.Both are connected by a narrow tube.if one of the container is maintained at temperature T and other at temperature T' ,then new pressure in the container will be ?
Molecular Physics | Thermodynamics
Three perfect gases at absolute temperatures T1,T2 and T3 are mixed.If number of molecules of the gases are n1,n2 and n3 respectively then temperature of mixture will be (assume no loss of energy)?
Molecular Physics | Thermodynamics
An ideal gas is enclosed in a container of volume V at pressure P.It is being pumped out of the container by using a pump with stroke volume V' . What is final pressure in container after n-stroke of the pump ?(assume temperature remains same)
Molecular Physics | Thermodynamics
At room temperature the rms speed of the molecules of a certain diatomic gas is found to be 1920 m/s.The gas is
(1) H2
(2)F2
(3) Cl2
(4) O2
(1) H2
(2)F2
(3) Cl2
(4) O2
Molecular Physics | Thermodynamics
Two thermally insulated vessels 1 and 2 are filled with air at temperatures(T1,T2),volume (V1,V2) and pressure (P1,P2) respectively.If the valve joining the two vessels is opened,the temperature inside the vessel at equilibrium will be?
Molecular Physics | Thermodynamics
During an experiment an ideal gas is found to obey an additional law PV^2 = constant.The gas is initially at temperature T and volume V,when it expands to volume 2V,the resulting temperature is
(1) T/2
(2) 2T
(3) 2^1/2T
(4) T/2^1/2
(1) T/2
(2) 2T
(3) 2^1/2T
(4) T/2^1/2
Molecular Physics | Thermodynamics
consider a compound slab consisting of two different materials having equal thickness and thermal conductivities K and 2K. The equivalent conductivity of the slab is
options are
(a) 2K/3 (b) (2^1/2)K (c) 3K (d) 4K/3
options are
(a) 2K/3 (b) (2^1/2)K (c) 3K (d) 4K/3
Molecular Physics | Thermodynamics
Two spheres made of same substance have diameters in the ratio 1:2 . Their thermal capacities are in the ratio of ? options are
(a) 1:2 (b) 1:8 (c) 1:4 (d) 2:1
(a) 1:2 (b) 1:8 (c) 1:4 (d) 2:1
