Why is it difficult to cook on hills ?
At high altitudes, atmospheric pressure is lower, reducing the boiling point of water as compared to that at sea level.
On hills at high altitudes due to low pressure boiling point of water becomes low as compared to sea level. Hence sufficient heat is not given to food. So it is difficult to cook
$2\;gm$ of steam condenses when passed through $40gm$ of water initially at $25^oC.$ The condensation of steam raises the temperature of water to $54.3^oC.$ What is the latent heat of steam ........... $cal/g$
What is latent heat of fusion ? What is latent heat of vapourization ? Give its value for water.
Which of the substances $A, B$ or $C$ has the highest specific heat $?$ The temperature vs time graph is shown
A liquid boils when its vapour pressure equals
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 $t$ ?