A liquid boils when its vapour pressure equals
The atmospheric pressure
Pressure of $76.0 \,cm$ column of mercury
The critical pressure
The dew point of the surroundings
Match the following according to conversion by heat :
Column $-I$ | Column $-II$ |
$(a)$ Required heat to convert solid into gaseous. | $(i)$ Latent heat of fusion |
$(b)$ Required heat to convert solid into liquid. | $(ii)$ Latent heat of vaporization. |
If liquefied oxygen at $1$ atmospheric pressure is heated from $50\, K$ to $300\, K$ by supplying heat at constant rate. The graph of temperature vs time will be
A closed bottle containing water at $30^{\circ} C$ is open on the surface of the moon. Then,
What is isolated system ?
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