The latent heat of vaporization of a substance is always
Greater than its latent heat of fusion
Greater than its latent heat of sublimation
Equal to its latent heat of sublimation
Less than its latent heat of fusion
Two substances $A$ and $B$ of equal mass m are heated at uniform rate of $6\, cal s^{-1}$ under similar conditions. $A$ graph between temperature and time is shown in figure. Ratio of heat absorbed ${H_A}/{H_B}$ by them for complete fusion is
What is sublimation ? Give name of sublimation substances.
A closed bottle containing water at $30^{\circ} C$ is open on the surface of the moon. Then,
What is the main difference between $P \to T$ diagram of water and $C{O_2}$ ?
Heat is supplied to a certain homogenous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown. Which of the following conclusions can be drawn