A closed bottle containing water at $30^{\circ} C$ is open on the surface of the moon. Then,
the water will boil
the water will come out as a spherical ball
the water will freeze
the water will decompose into hydrogen and oxygen
What are fusion and melting point ? On what does the value of melting point depend ?
Ametal wire is clamped between two vertical walls.At $20 ^o C$ the unstrained length of the wire is exactly equal to the separation between walls. If the temperature of the wire is decreased the graph between elastic energy density $(u)$ and temperature $(T)$ of the wire is
By exerting a certain amountof pressure on an ice block, you
The graph signifies
The latent heat of vaporization of a substance is always