If water at $0\,^oC$ kept in a container with an open mouth, is placed in a large evacuated chamber,
All the water will vaporise
All the water will freeze
Part of the water will vaporise and rest will freeze
Ice, water and water vapour will be formed and reach equilibrium at triple point
when a man eats $100\,g$ of ice in a minutes, how much power will he get ? The latent heat of ice is $80\,cal/g$.
During summers in India, one of the common practice to keep cool is to make ice balls of crushed ice, dip it in flavoured sugar syrup and sip it. For this a stick is inserted into crushed ice and is squeezed in the palm to make it into the ball. Equivalently in winter, in those areas where it snows, people make snow balls and throw around. Explain the formation of ball out of crushed ice or snow in the light of $p\to T$ diagram of water.
The temperature at which the vapour pressure of a liquid becomes equals to the external (atmospheric) pressure is its
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
What is latent heat ? Explain with example.