Why do wet clothes kept in shade dry slowly on a rainy day even in summer ?
During rainy day, the humidity of air increases, i.e., air is quite saturated with water vapour or air cannot hold more water vapour. Therefore, rate of evaporation of water from wet clothes decreases. So wet clothes dry slowly in rainy day.
Convert the following temperature to Celsius scale.
573 K
Convert the following temperatures to Kelvin scale
25°C
What is the physical state of water at
100 °C
For any substance, why does the temperature remain constant during the change of state ?
Suggest a method to liquify atmospheric gases.
Convert the following temperatures to Kelvin scale.
35°C
Give reason for the following observations.
Naphthalene balls disappear with time without leaving any solid.
Give reason for the following observations.
We can get the smell of perfume sitting several metres away.
What is the physical state of water at
a) 25°C
b)00C
c)1000C
What is the physical state of water at
0°C
Mock Test Series
