Question
Suppose you walk across a room of length 9 m with a velocity of one and half kilometre per hour. Express this velocity in unit of m/s and find the time you will take to move across the room.
Solution
Suppose you walk across a room of length 9 m with a velocity of one and half kilometre per hour. Express this velocity in unit of m/s and find the time you will take to move across the room.
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
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