Calorimetry Questions

Two large holes are cut in a metal sheet. If this is heated, distances AB and BC, (as shown)...

A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closed circulation system (as shown schematically in the figure), the water from the cooler is used to ...

If I is the moment of inertia of a solid body having a -coefficient of linear expansion then the change in I corresponding to a small change in temperature ᐃT is

Two solid spheres A and B of equal volumes but of different densities dA and dB are conected by a string. They are fully immersed in a fluid of density dF. They get arranged into an equilibrium state ...

A point mass is subjected to two simultaneous sinusoidal displacements in x-direction, x1(t) = A sin ωt and x2(t) = A sin . Adding a third sinusoidal displacement x3(t) = B sin (wt + φ) brin...

There is a rectangular metal plate in which two cavities in the shape of rectangle and circle are made, as shown with dimensions. P and Q are the centres of these cavities. On heating the plate, which...

When two non reactive samples at different temperatures are mixed in an isolated container of negligible heat capacity the temperature of the mixture can be :

Two identical beakers with negligible thermal expansion are filled with water to the same level at 4oC. If one says A is heated while the other says B is cooled, then :...

When m gm of water at 10oC is mixed with m gm of ice at 0oC, which of the following statements are false?

In Newtonᐃs law of cooling, = -k (θ - θ), the constant k is proportional to

Steam at 100o C is passed into 1.1 kg of water contained in a calorimeter of water equivalent 0.02 kg at 15o C till the temperature of the calorimeter and its contents rises to 80o C . The mass of the...

A metal ball immersed in water weighs w1 at 5oC and w2 at 50oC. The coefficient of cubical expansion of metal is less than that of water. Then...

The volume thermal expansion coefficient of an ideal gas at constant pressure is

Two rods having length l1 and l2, made of materials with the linear coefficient of expansion α1 and α2, were welded together. The equivalent coefficients of linear expansion for the obtained...

A liquid with coefficient of volume expansion γ is filled in a container of a material having the coefficient of linear expansion α .If the liquid overflows on heating, then -...

Heat given to a body which raises its temperature by 1oC is

A steel rod 25 cm long has a cross-sectional area of 0.8 cm2. Force required to stretch this rod by the same amount as the expansion produced by heating it through 10oC is:(Coefficient of linear expan...

A metal ball of specific gravity 4.5 and specific heat 0.1 cal/gm-oC is placed on a large slab of ice at 0oC. Half of the ball sinks in the ice. The initial temperature of the ball is :- (Latent heat ...

A difference of temperature of 25º C is equivalent to a difference of :

If a bimetallic strip is heated, it will