Key knowledge:
• trends in the melting and boiling points of Group 16 hydrides, with reference to the nature and relative strengths of their intermolecular forces and to account for the exceptional values for water
• specific heat capacity and latent heat including units and symbols, with reference to hydrogen bonding to account for the relatively high specific heat capacity of liquid water, and significance for organisms and water supplies of the relatively high latent heat of vaporisation of water.
• trends in the melting and boiling points of Group 16 hydrides, with reference to the nature and relative strengths of their intermolecular forces and to account for the exceptional values for water
• specific heat capacity and latent heat including units and symbols, with reference to hydrogen bonding to account for the relatively high specific heat capacity of liquid water, and significance for organisms and water supplies of the relatively high latent heat of vaporisation of water.
WATER IS ESSENTIAL TO LIFE
Why?
•Life cannot exist without water.
•Humans cannot last for more than a few days without water.
•Water plays a vital role in the temperature control of our bodies.
•Water transports substances around our body.
•Water is obtained by the body through drinking, food and respiration.
Why?
•Life cannot exist without water.
•Humans cannot last for more than a few days without water.
•Water plays a vital role in the temperature control of our bodies.
•Water transports substances around our body.
•Water is obtained by the body through drinking, food and respiration.