Give two reasons to justify -
1 water at room temperature is liquid.
2 iron almirah is solid at room temperature.
Give two reasons to justify -
1 water at room temperature is liquid.
2 iron almirah is solid at room temperature.
1)
At room temperature (25°C), water is a liquid because it has the following characteristics of liquid:
(i) At room temperature, water has no shape but has a fixed volume i.e., it occupies the shape of the container in which it is kept. This is because, intermolecular force of attraction between molecules of water is very low, but not as low as gases.
(ii) At room temperature, water flows easily, as it is a liquid.
So, water is a liquid at room temperature. Water becomes solid, ice , only at 0 degree celsius.
2.
An iron almirah is a solid at room temperature (25°C) because:
(i) It has a definite shape and volume like a solid at room temperature. Iron being a metal has strong atomic attraction forces.
(ii) It is rigid as solid at room temperature.
Iron melts at temperatures as high as 1000-1600 degree celcius only. Due to strong intermolecular forces, Iron is solid.
1)
At room temperature (25°C), water is a liquid because it has the following characteristics of liquid:
(i) At room temperature, water has no shape but has a fixed volume i.e., it occupies the shape of the container in which it is kept. This is because, intermolecular force of attraction between molecules of water is very low, but not as low as gases.
(ii) At room temperature, water flows easily, as it is a liquid.
So, water is a liquid at room temperature. Water becomes solid, ice , only at 0 degree celsius.
2.
An iron almirah is a solid at room temperature (25°C) because:
(i) It has a definite shape and volume like a solid at room temperature. Iron being a metal has strong atomic attraction forces.
(ii) It is rigid as solid at room temperature.
Iron melts at temperatures as high as 1000-1600 degree celcius only. Due to strong intermolecular forces, Iron is solid.
