Heat and Thermal Expansion Questions

Coefficient of linear expansion of brass and steel rods are α1 and α2. Lengths of brass and steel rods are 𝑙1 and 𝑙2 respectively. If (𝑙2 - 𝑙1) is maintained same at al...

The pressure that has to be applied to the ends of a steel rod of length 10 cm to keep its length constant when its temperature is raised by 100oC is :(For steel Young′s modulus is 2 × 1011...

A thermodynamic system undergoes cyclic process ABCDA as shown figure. The work done by the system is : -...

A metal ball immersed in alcohal weigh W1 at 0o and W2 at 50o. The coefficient of cubical expension of the metal is less than the alcohol. Asssuming that the density of the metal is large compared to ...

Two rods of different materials having coefficents of thhermal expansion α1, α2 and Young′s moduli Y1, Y2 respectively are fixed between two rigid massive walls. The rods are heated su...

When a block of iron in floats in murcury at 0oC, fraction k1 of its volume is submerged, while at the temperature 60oC, a fraction k2 is seen to be submerged. If the coefficient of volume expansion o...

The figure shows two rods, one made of aluminum [α = 23 × 10-6 (Co)-1] and the other of steel [α = 12 × 10-6(Co)-1] Each rod has the same length and the initial temperature. They a...

Given T - P curve for three processes. If initial and final pressure are same for all processes than work done in in process 1, 2 and 3 is W1,W2 & W3 respectively. Correct order is...

A fine wire of length 4m is fixed rigidly in a heavy in a brass frame as shown in figure. It is just taut at 20oC. The tensile stress developed in steel wire if whole system is heated to 120oC is :-(&...

The resistance of a coil in a platinum resistance thermometer at 0oC is 5 ohm and at 100oC it is 5.75 ohm. Its resistance at an unknown temperature is 5.15 ohm. Then the unknown temperature will be : ...

The fundamental interval, that is the number of division between LFP & UFP on the two scales X and Y are 50 and 150 respectively. The ice point on both the scales is all 0°. If the temperature on the ...

In a solid metal sphere there is a spherical cavity if solid is heated then volume of cavity

At what temperature does the temperature in Celsius and Fahrenheit equalise

-40oC is equal to following temp. :-

If the temperature of a body is 140oF, its value in oC will be :-

The correct value of 0oC on kelvin scale is :

If the coefficient of Linear expansion of a solid is 0.00009. Its coefficient of volume expansion is :

The volume of a metal sphere increases by 0.15 % when its temperature is raised by 24oC.The coefficient of linear expansion of metal is :

A wire of cross-sectional area 3 mm2 is first stretched between two fixed points at a temperature of 20oC. Determine the tension when the temperature falls to 10oC. Coefficient of linear expansion &#9...

When a copper sphere is heated, maximum percentage change will be observed in -