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Answers
1)ans Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules.
2)ans Temperature (symbolized T ) is an expression of heat energy. Temperature can mean different things in different situations. Thermodynamic temperature is a measure of the kinetic energy in molecules or atom s of a substance. ... A fourth scale, known as the Rankine (R) temperature scale, is less often used.
3)ans flammable materials include wood, kerosene, and alcohol. Examples of nonflammable materials include helium, glass, and steel. While it may surprise you, another example of a non-flammable substance is oxygen—which, as an oxidizer, is instead combustible.
4)ans The autoignition temperature or kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. ... The ignition temperature of a substance is the least temperature at which the substance starts combustion.
5)ans It is more durable than alcohol thermometer because mercury does not evaporate easily. It is smaller in size as compared to alcohol one. Mercury does not wet the wall of the thermometer, which means that results can be highly accurate.
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