2019_Tutorial_Heat and Heat Transfer.pdf - Tutorial:...

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Tutorial: Temperature, Heat and Heat Transfer(2019)1.At what temperature is the Fahrenheit scale reading equala)Twice that of the Celsius scale?b)Half that of the Celsius scale?2.Suppose that on a linear temperature scaleX, waterboils at−53.5° Xand freezes at−170° XWhat is a temperature of340 Kon theXscale (approximate water’s boiling point as373 K3.Two bodies, A and B, are initially at the same temperature. If the temperature of A increases by1°Cand the temperature of B increases by1°F, which body has the higher final temperature?4.At what temperature are the Celsius and Fahrenheit temperatures numerically the same?5.Mercury boils at675°Fand solidifies at−38°Funder one atmosphere. Express these on theCelsius and Kelvin scales.6.An aluminium alloy rod has a length of10.000 cmat20.000℃and a length of10.015 cmat theboiling point of water.a)What is the length of the rod at the freezing point of water?b)What is the temperature if the length of the rod is10.009 cm7.At20℃, a brass cube has an edge length of30 cm. What is the increase in the cube’s surfacearea when it is heated from20℃ to 75℃8.As a result of a temperature rise of32℃, a bar with a crack at its center buckles upward (seefigure below). If the fixed distance𝐿0is3.77 mand the coefficient of linear expansion of the baris25 × 10−6/C0, find the rise of the center..).??
9.An aluminium cup of100 cm3capacity is completely filled with glycerine at22 ℃. How muchglycerine, if any, will spill out of the cup if the temperature of both the cup and the glycerine isincreased to28℃? (The coefficient of volume expansion of glycerine is5.1 × 10−4(℃)−110.Find the approximate length of the Golden Gate bridge if it is known that the steel in the roadbedexpands by 0.53 m when the temperature changes from+2℃to+23℃11.A steel aircraft carrier is 370 m long when moving through the icy North Atlantic at a temperatureof2°C. By how much does the carrier lengthen when it is traveling in the warm mediterraneanSea at a temperature of21°C12.A rod made from a particular alloy is heated from25.0°Cto the boiling point of water. Its lengthincreases by8.47 × 10−4m. The rod is then cooled from25.0°Cto the freezing point of water. Byhow much does the rod shrink?)...

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Term
Fall
Professor
PAVEL TABAKOV

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