Heat

Heat Capacity Heat capacity is the measure of the ability of an object to store heat as its temperature changes. It is the measure of the amount of heat required to change the temperature of an object by 1°C. The SI unit of heat capacity is joules per Kelvin (J/K). The heat capacity of an … Read more

Calibrating a Thermometer To calibrate a thermometer means to put the correct mark of reading at the correct place so that other temperature can be deduced from these marks.  To do this, two extreme points are chosen to mark its scale and these points must be able to be reproduced accurately. Usually, we take the … Read more

Liquid in Glass Thermometer The liquid in glass thermometer works on the principle that liquid expands as the temperature increases and contracts as the temperature decreases. The most commonly used liquids in such thermometers are Mercury Alcohol Q & A Q: State the advantageous and disadvantageous of using mercury as the liquid in a liquid … Read more

Applications of Thermal Equilibrium Oven When food such as meat or cake is put in the oven, the heat of the oven is transferred into the food. This process will continue until the food is in thermal equilibrium with the air in the oven. This happen when the temperature of the food is equal to … Read more

Thermal Equilibrium Two objects are in thermal contact when heat energy can be transferred between them. Two objects are in thermal equilibrium when there is no net flow of heat between two objects that are in thermal equilibrium. Two objects in thermal equilibrium have the same temperature. Example:Figure below shows 2 blocks in thermal contact … Read more

Heat is the flow of thermal energy. Temperature is a measure of the average kinetic energy which each molecule of an object possesses. Thermal Energy and Heat Thermal energy is a measure of the sum of kinetic and potential energy in all the molecules or atoms in an object. The SI unit of thermal energy … Read more

Thermal Energy, Heat and Temperature Thermal Equilibrium Applications of Thermal Equilibrium Liquid in Glass Thermometer Calibrating a Thermometer Numerical Problems Heat Capacity Specific Heat Capacity Numerical Problems Conversion of Energy (Video1) Thermal Energy Gain and Loss Applications of Specific Heat Capacity Cooking Pot Cooling System of Car Engine Factories with Low Ceiling Thermal Radiator Phenomena … Read more