'Calculate heat' diaporamas de présentation

Energetics

Energetics. First Law of Thermodynamics. The law of conservation of energy states that in any chemical reaction or physical process, energy can be converted from one form to another, but it is neither created nor destroyed. Heat and Temperature.

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Test 2 Study Guide

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Thermal Properties of Matter

Thermal Properties of Matter. Specific Heat Capacity. Level: Secondary 3 Express (Pure Physics) Duration: 2 periods (70 minutes) Venue: Physics Laboratory. Lesson Objectives. Define the terms heat capacity and specific heat capacity.

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Phase Changes and Heat Calculations

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Heat and Temperature

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Energy Changes in Reactions

Energy Changes in Reactions. Learning objectives. Perform simple energy calculations using different energy units Apply specific heat concept to heat calculations Distinguish between endothermic and exothermic reactions Calculate specific heat from calorimetry

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Chapter 13

Chapter 13. Solids and Liquids. Molar Heat of Vaporization. The amount of heat energy required to vaporize one mole of liquid at its boiling point. Joules are the standard unit to measure heat energy. Molar heat of vaporization for water is 40.7 kJ/mole .

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Experimental Enthalpy Changes

Experimental Enthalpy Changes. q = mc ? t. Copper Sulphate + Zinc. 25cm 3 of 0.5 mol dm -3 CuSO 4 1g zinc (excess) Temp rise 20 o C. Temp. Time (min). Calculate heat energy. q = m c ? t. q = heat energy change (J) m = 25g (assuming density = 1g/cm 3 ) c = 4.18Jg -1 K -1 ? t = 20.

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Specific Heat

Specific Heat. mC D T. Specific Heat. The amount of heat energy a material requires to raise its temperature is a characteristic that can be used to identify it. This is called heat capacity, Cp. It is measured in Joules per gram per degree Celsius

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