Friday, March 29, 2019
Properties of Heat and Temperature
Properties of passion and Temperature erupt is the transfer of readiness from unmatched body to another due to the inconsistency in temperature mingled with the two. A burningter target placed next to a pee-cooled object will always transfer come alive from itself into the cooler object, until both objects argon of equal temperature. For example, when we place ice cubes in hot water supply, the love energy from the hot water transfers to the ice cubes. This transfer of alter energy will continue until equilibrium is reached between the hot water and the ice. foment is a peak of the internal energy that has been absorbed or transferred from one body to another. It is not conserved it lavatory be either created or destroyed. There be two general ways that diverge can occur from a temperature difference, with energy moving from the region of higher temperature, and from an object reach outing energy by way of an energy-form conversion.The SI unit of arouse is thejo ule. The system of measurement unit of heat is called the calorie (cal), which is defined as the amount of heat required to raise the temperature of one gram of water from 14.5oC to 15.5oC. The English systems measure of heating is called the British thermal unit (Btu), which is the amount of heat call for to increase the temperature of 1 vanquish of water 1 point in time Fahrenheit.some(a) examples of heat energy are chemical energy from the foods is converted into heating our bodies conflagrate from the sun is converted to heat as the suns rays warm the earths turn out energy from friction creates heat, like when we rub our hands in light bulbs, electrical energy is converted into heat energy, etc.What is temperature?Temperature is a floor of hotness or coldness of a body. For example, a hot oven is say to have a high temperature, and the ice is said to have mortified temperature. Temperature is the measure of the middling kinetic energy of the particles, atoms or molecu les, making up a shopping center. Temperature can be mensural using a thermometer. It is metrical in storeys on the Fahrenheit, Celsius, and Kelvin scales.What is the relationship between heat and temperature?Heat and temperature is not the same thing, but there is a relationship between them. When heat is introduced to a certain agency, its molecules start moving faster and shake up with one another, which produce more heat and the temperature of the fondness goes up. This implies that heat introduced to a substance, changes the temperature of the body. This relationship between heat and temperature can be explained by a property called specific heat,c, which is defined as the amount of heat take to increase the temperature of 1 gram of a substance 1 degree Celsius.WhereQis the amount of heat essential,mis the mass of the stuff and nonsense,cis the specific heat of the material, and Tis the change in temperature.From the above equation, the amount of heat indispensable i s proportional to the temperature change, which means more heat will be needed to raise the temperature of the cool water and little heat will be needed to raise the temperature of the warm tea.How are they different?Heat and temperature are most definitely linked one another, but they are not same.Heat is the measure based on total internal energy, internal kinetic energy and internal potential energy, of the molecules of an object, whereas temperature is a measure of the degree of hotness and coldness of an object, a measure that is based on the average molecular kinetic energy. Heat is measured in joules (J) or calories (cal.) and temperature is measured in degrees on the Fahrenheit, Celsius, and Kelvin scales. Heat is an extensive property, while temperature is an intensive property. Heat work outs on mass or quantity of the substance, whereas temperature does not depend on the quantity of matter. For example, if the boiling temperature of water is 100C, it will go along the same whether we boil one liter or 50 liters of water. hardly the amount of heat generated when we boil 1 liter of water is less as compared to heat generated when 50 liters of water is boiled to 100C.What are the various properties of a substance that determine its heat faculty?The heat capacity is the quantity of heat needed to raise the temperature of a substance by one degree Celsius. It is a measure of how much heat the object must gain or lose to change its temperature by a given amount. The SI unit for heat capacity is J/K (joule per Kelvin). In the English system, its units are British thermal units per pound per degree Fahrenheit (Btu/oF).The heat capacity differs from substance to substance. The amount of substance is directly proportional to the heat capacity. This means the amount of a substance (mass) determines its heat capacity the more quantity of a substance or the greater the mass, more heat it would gain or lose to change its temperature by 1C. For example, it wo uld take more heat to warm the pitcher of water by 1C than to warm a cup of water by 1C.The heat capacity also depends on the nature or type of material of which the object is composed different materials require different amounts of heat gain or heat loss to change their temperature by 1C, even off if they have the same masses. For example, it takes 1 calorie of sunlight to warm 1g of water 1C, whereas, it only takes 0.2 calories to change the temperature of 1g of soil by 1CHeat capacity might depend on the temperature of the object or the atmospheric pressure. For a gas, heat capacity would depend on whether pressure was being held eternal during the heat gain or loss, or whether the volume was held constant, or neither.
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