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
A substance is cooled at a constant power. Its temperature vs time graph is shown. The value of $S_{solid} : S_{liquid} : S_{gas}$
The saturation vapour pressure of water at $100°C$ is ........ $mm$ of mercury
Explain the process of change in state of matter by heating or cooling it.
At temperatures close to $0\ K$ , the heat capacity $C$ of a certain solid is related to its temperature $T$ by the equation $C = aT^3$ , where a is a constant characteristic of the solid. Heat is supplied to the solid at a steady rate. Which graph best represents the variation of its temperature $T$ with time $t$ ?
Why skating is possible on ice ?