Why is it difficult to cook on hills ?
Dry ice is
A solid substance is at $30°C$. To this substance heat energy is supplied at a constant rate. Then temperature versus time graph is as shown in the figure. The substance is in liquid state for the portion (of the graph)
A student takes $50\,gm$ wax $($specific heat $= 0.6\, kcal/kg°C)$ and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively
Match the followings :
Column $-I$ | Column $-II$ |
$(a)$ Combined existence of liquid-gaseous state of substance. | $(i)$ Sublimation curve |
$(b)$ Combined existence of solid-gaseous state of substance. | $(ii)$ Fusion curve |
$(iii)$ Vaporization curve |