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  Item Reference: KCLCAL-1899-1900-824

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clxxii ENTRANCE EXHIBITIONS Explain the action of the common air-pump What conditions determine limit to the degree of exhaustion In what ways may more perfect vacua be obtained Describe experiments you would use in order to prove that the coefficients of expansion of the more permanent gases are very nearly the same Show how to determine the exact value of this coefficient piece of iron weighing 16 grams is dropped into cavity in block of ice of which it melts 25 grams If the latent heat of water is 80 and the specific heat of iron one-ninth what was the original temperature of the iron when introduced Describe the different ways in which heat is transmitted in solids in fluids and in space Explain why blackened thermometer bulb which is enclosed by an outer globe of clear glass when exposed to the sun rises more in tern- perature than similar thermometer which has not an outer glass bulb State the laws of thermodynamics and apply them to the consideration of the changes of temperature which are produced when gas is compressed or allowed to expand ד What facts relating to the composition of hydrogen chloride are indicated by its formula HC1 Describe accur ately how you would demonstrate the composition of the gas live equations illustrating the action of water on the following substances iron at red heat heated char ι ψ 1" Τ -γ coal phosphorus pentoxide nitrogen peroxide What compounds are produced by the oxidation of sulphur dioxide How would you prepare them What is the action of hydrochloric acid and of sulphuric acid on cuprous oxide manganese dioxide chromium trioxide What is the principal ore from which chromium is obtained Describe the preparation and chief properties of the oxides and of the chlorides of chromium
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