Recently Active Thermal Physics Questions

A spherical body of area A and emissivity 0.6 is kept inside a perfectly black body. total heat radiated by the body at temperature T is ... ...

An Ice cube of mass 0.1 kg at 0 degree C is placed in an isolated container which is at 227 degree C. the specific heat s o fthe container varies with temperature T according to the empirical relation S=A+BT. where A=100cal/k ...

in adiabatic compression decrease in volume is assosiated with a)inc in temp n decre in pressure b)decr in temp n incre in pressr c)decre in both d0inc in both ...

P-V diagram of a diatomic gas is a straight line passing through origin. the molar heat capacity of the gas in the process will be (A) 4R (B) 25R (C) 3R (D) 4R/3 (*please show the working) ...

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Assertion : If a gas container is placed in a moving train , the temperature of the gas will increase. Reason : Kinetic energy of a gas molecule will increase ...

Two thermally insulated vessels 1 and 2 are fiiled with air at temperature (T1,T2),volumes (V1,V2) and pressure(P1,P2) respectively.If the valve joining the two vessels is opened , the temperature inside the vessel at equilib ...

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Assertion: If pressure of an ideal gas is doubled and volume is halved, then its internal energy will remain unchanged. Reason: Internal energy of an ideal gas is a function of temperature only. ...

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*Image* Note: This single question contains lots of questions,so answer it carefully. ...

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The value of CP - CV is 1.00R for a gas sample in state A and is 1.08R in state B. Let pA and pB denote the pressures and TA and TB denote the temperatures of the states A and B resp. Most likely (a) pA<pB & TA>TB (b) p ...

A ball is dropped on a floor from a height of 2.0m. After the collision it rises upto a height of 1.5m. Assume that 40% of the mechanical energy lost goes as thermal energy into the ball. Calculate the rise in the temperature ...

A 100kg block is started with a speed of 2m/s on a long, rough belt kept fixed in a horizontal position. The coefficient of kinetic friction betn. the block and the belt is 0.20. Consider the situation from a frame of referen ...

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*Image* Helium gas undergoes 2 isochoric and isobaric processes...efficiency of the cycle???? I am not understanding the solution.... *Image* ...

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*Image* all question with working pl.. ...