The amount of solar energy received by earth is given. Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth is to be calculated. Mass of coal required to be burned to provide the same amount of energy is to be stated. Concept introduction: Energy change of a system can be calculated by Einstein’s theory of relativity . When a system loses or gains energy, it also gains or loses a quantity of mass given by E/c 2 . To determine: Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth and the mass of coal required to be burned to provide the same amount of energy.

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In addition to the separation techniques used in this lab (magnetism, evaporation, and filtering), there are other commonly used separation techniques. Some of these techniques are:Distillation – this process is used to separate components that have significantly different boiling points. The solution is heated and the lower boiling point substance is vaporized first. The vapor can be collected and condensed and the component recovered as a pure liquid. If the temperature of the mixture is then raised, the next higher boiling component will come off and be collected. Eventually only non-volatile components will be left in the original solution.Centrifugation – a centrifuge will separate mixtures based on their mass. The mixture is placed in a centrifuge tube which is then spun at a high speed. Heavier components will settle at the bottom of the tube while lighter components will be at the top. This is the technique used to separate red blood cells from blood plasma.Sieving – this is…

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Chapter 19, Problem 42E

Interpretation Introduction

Interpretation: The amount of solar energy received by earth is given. Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth is to be calculated. Mass of coal required to be burned to provide the same amount of energy is to be stated.

Concept introduction: Energy change of a system can be calculated by Einstein’s theory of relativity. When a system loses or gains energy, it also gains or loses a quantity of mass given by E/c2 .

To determine: Mass of solar energy converted to energy over a 24 -hour period to provide the daily amount of solar energy to the earth and the mass of coal required to be burned to provide the same amount of energy.

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In addition to the separation techniques used in this lab (magnetism, evaporation, and filtering), there are other commonly used separation techniques. Some of these techniques are:Distillation – this process is used to separate components that have significantly different boiling points. The solution is heated and the lower boiling point substance is vaporized first. The vapor can be collected and condensed and the component recovered as a pure liquid. If the temperature of the mixture is then raised, the next higher boiling component will come off and be collected. Eventually only non-volatile components will be left in the original solution.Centrifugation – a centrifuge will separate mixtures based on their mass. The mixture is placed in a centrifuge tube which is then spun at a high speed. Heavier components will settle at the bottom of the tube while lighter components will be at the top. This is the technique used to separate red blood cells from blood plasma.Sieving – this is…

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