effect of heat

When heated, sulphur undergoes a series of changes as discussed in section 13.5 abov..

We heat raw food to soften it. We freeze water into ice by cooling it in refrigerator. When we boil water in a kettle we observe the steam oozing from the mouth of the kettl..

Effect of Heat on Hydrous Salts - When heated, hydrous crystals lose their water of crystallisation and turn into a powder. They may also lose their colour. They are then said to be anhydrou..

Effect of Heat on Sulphur - Heat on sulphur is a physical change. When heated, it undergoes a series of changes in colour, form and viscosity at various temp. 115 o C 115 - 180 o C Beyond 180 o C Straw coloured liq..

On heating, hydrous crystals lose their water of crystallization and turn into a powder. They are then said to be anhydrous. Sometimes they may also lose their colou..

Lead nitrate is a white, crystalline solid. When heated, it starts decomposing with a crackling sound, producing a reddish brown gas called nitrogen dioxide, and a colourless gas, oxygen. A yellow residue of lead monoxide is left behind in the test tube..

When heated, hydrous crystals lose their water of crystallisation and turn into a powder. They may also lose their colour. They are then said to be anhydrous. ..

On heating, hydrous crystals lose their water of crystallization and turn into a powder. They are then said to be anhydrous. Sometimes they may also lose their colour..

Heat..

The heating effect of current is utilized in electrical heating appliances such as electric iron, room heaters, water heaters, etc. All these heating appliances contain coils of high resistance wire made of nichrome alloy. When these appliances are connected ..