Thermal Propert...

In which of the following phenomena, the heat waves travel along straight lines with the speed of light?

Describe the anomalous expansion of water?

The temperature of a 3 kg block of aluminium increased by 3 degrees. How much heat would be needed to raise the temperature of a 9 kg block of aluminum by 3 degrees?

If the pressure of the gas contained in a vessel is increased by $$0.4$$%, when heated through $$\displaystyle { 1 }^{ \circ  }C$$. What is the initial temperature of the gas?

A closed container of volume V contains an ideal gas at pressure P and Kelvin Temperature T. The temperature of the gas is changed to 4T due to passing heat to the container. Choose correct pairs of pressure and volume after change of the temperature.

A  gas in a flexible container initially has volume of 320 L. If we decrease the pressure of the gas from 4.0 atm to 1.0 atm and decrease the temperature form 273 degrees Celsius to 0 degrees Celsius, what is the new volume of the gas?

Identify the statement in which the mode of heat transfer is convection ?

Heat can be transferred to the inside surface of the walls of the container by which of the above?  

At $$\displaystyle { 10 }^{ \circ  }C$$, the value of the density of a fixed mass of an ideal gas divided by its pressure is $$'x'$$, at $$\displaystyle { 110 }^{ \circ  }C$$ this ratio is:

The temperature of the water of a pond is $${0}^{o}C$$ while that of the surrounding atmosphere is $$-{20}^{o}C$$. If the density of ice is $$\rho$$, coefficient of thermal conductivity is $$k$$ and latent heat of melting is $$L$$ then the thickness $$Z$$ of ice layer formed increases as a function of time $$t$$ as :