Recently Active Thermal Physics Questions

A monoatomic ideal gas of two moles is taken through a cyclic process starting for A as shown in the figure .The volume ratios are VB/VA=2 and VD/VA=4. If the temperature TA at A is 27 degree C, calculate a) The temperature o ...

An ideal gas is taken through a cyclic thermodynamic process through four steps. The amounts of heat involved in these steps are Q1=5960J, Q2=-5585 J , Q3=-2980 J and Q4= 3645 J respectively. The corresponding works involved ...

A spherical black body with radius 12 cm radiates 450W power at 500 K . If the radius were halved and the temperature doubled, the power radiated in watt would be? ...

A 5 m long cylindrical steel wire with radius 2x10-3m is suspended vertically from a rigid support and carries a bob of mass 100Kg at the other end. If the bob gets snapped, calculate the change in temperature of the wire ign ...

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assertion: water can be boiled inside a satellite by convection . reason : convection is the process in which heat is transmitted from a place of higher temperature to a place of lower temperature by means of particles with t ...

the fuse wire has high or low resistance ...

a cubical block is floating inside a bath. The temp of the system is increased by a small temp T. It was found that the depth of the submerged portion did not change. find relation between coeff of linear expansion α of cube ...

Pressure varies directly with volume as such Ti=Tf.Plot P-V graph..... ...

three rods of identical cross sectional area and made of the same metal form the sides of an isosceles triangle ABC . right angled at B . The points A and B are maintained at temperatures T and 2 T respectively . in the stead ...

statement 1: the thermal resistance of a multiple layer is equal to the sum of the thermal resistances of the individual laminas Please tell whether this statwement is correct or not ...

in case of hydrogen and oxugen at N.T.P which of the following quantities is/are the same (a) average linear momentum per molecule (b) average KE per molecule (c)KE per unit molecule (d)KE per unit mass ...

An ideal monoatomic gas at temperature 27°C and pressure 106N/m2 occupies 10 litre volume. 10000 cal of heat is added to the system without changing the volume. Calculate the final temperature of the gas ? i m getting 383 K ...

What kind of questions can we get from Kintetic theory of gases??? Also is there any chance of or has there been any questions from the different types of thermometers? ...

find the ratio of adiabatic bulk modulus and isothermal bulk modulus of a gas ? γ=CP/CV ...

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*Image* two steel rods and an aluminium rod of equal length l0 and equal cross section are joined rigidly at their ends a sshown in the figure below. all the rods are in a state of zero tension at 00C. Find the length of the ...

a glass window is to be fit in an aluminium frame . the temperature on the working day is 400C and the glass window measures exactly 20 cm X 30 cm . What should be the size of the aluminium frame so that there is no stress on ...

A meter scale made of stell is calibrated at 20°C to give correct reading. Find the distance between 50 cm mark and 51 cm mark if the scale us used at 10°C. Coefficient of linear expansion of stell is 1.1 X 10 -5 /°C. Ans. ...

a railway track (made of iron) is laid in winter when the average temperature is 180C . The track consists of sections of 12.0m placed one after the other . how much gep should be left between two such sections so that there ...

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Q. Is a slow process always isothermal ? ...

Q. A rigid container of negligible heat capacity contains one mole of ideal gas. The temperature of the gas increases by 1 C if 3.0 cal of heat is added to it. The gas may be— a.Argon b. Helium c.nitrogen d Oxygen ...

Q. When we heat an object, it expands. Is work done by the object in the process ? Is heat given to the object equal to the increase in its internal energy ? ...

Q.The outer surface of a cylinder containing a gas is rubbed vigorously by polishing a machine. The cylinder and its gas become warm. Is the energy transferred to the gas heat or work ? ...

Q. When an object cooled down, heat is withdrawn from it. Does the entropy of the object decrease in the process ? If yes, is it a violation of the 2nd law of thermodynamics stated in terms of increase in entropy ? ...

how do we convert a v/p curve of an ideal gas 2 a p/v curve. is rotation of mirror image of the curve the correct way??? ...

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1] caculate the least amount of work that must be done to freeze one gram of water at 0 degrees by a refrigerator. temperature of surroundings is 27 degrees. how much heat is passed to surroundings in this process? latent hea ...