a). How much energy is given to your body when 0.4 kg of steam condenses on your skin? b). If the same amount of energy were used to warm 4 kg of water( which is ten times the amount of steam) initially at 0 deg Celsius, what would be the final temperature of the water in deg C and c) in deg F?
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- A hollow aluminum cylinder 20.0 cm deep has an internal capacity of 2.000 L at20.0°C. It is completely filled with turpentine and then warmed to 80.0°C. Turpentine and container both expand. a. How many cm3 of turpentine overflow? b. If it is then cooled back to 20.0°C, how far below the surface of the cylinder’srim is the turpentine surface?You are heating up 27kg of liquid water from 41 degrees Celcius to 50 degrees Celcius. a.) What constant or constants do you need to fiigure out how much heat this takes? Pick from the following: Latent heat of fusion, Latent heat of sublimation, both specific hear and a form of latent heat, specific heat, latent heat of vaporization. b.) Find the amount of heat needed to do this. (note some you may not need) (Latent heat of fusion= 333,000I/kg, Latent heat of vaporization=2,260,000 J/Kg, latent heat of sublimation= 2,830,000, Specific heat= 4186J/kg)The height of the Washington Monument is measured to be 170 m on a day when the temperature is 39.0°C. What will its height be in meters on a day when the temperature falls to −16.5°C? Although the monument is made of limestone, assume that its thermal coefficient of expansion is the same as marble's. (Assume the temperature of the entire monument changes from 39.0°C to −16.5°C. Enter your answer to at least five significant figures.) ____________________ m
- A2] The figure shows a copper disk of radius r and thickness r, with a hole through its centre of radius a: Find an expression for the volume of the copper. b) Find an expression for the increase in temperature of the copper AT if it is supplied with an amount of heat Q at constant pressure. The density and specific heat (heat capacity per unit mass) of copper at constant pressure are PCu and ccu respectively. (You should treat these quantities as constants even though thermal expansion will slightly reduce the density, for example). c) of the disk AA/A when its temperature increases by AT, if the coefficient of linear expansion of copper is aCu- (change in dimension)", such as (Ar). Find an expression for the fractional increase in area of the top surface You should ignore terms of the orderA 1.0-m-long steel beam, initially at a temperature of 250 C, increases in temperature to 1000 C by inserting it into an insulating jacket for several minutes while the inside of the jacket is subsequently flooded with steam. By how much does the length of the steel beam expand? (The thermal coefficient of linear expansion for steel is 12 x 10-6 (C0)-1) a. 0.90 mm b. 1.0 mm c. 0.70 mm d. 0.80 mm e. 0.60 mmI set the house temperature to 66 deg Fahrenheit at night time. On a cold morning, I measure the temperature of various objects in my room. I should find that a) all objects have the same temperature. b) metallic objects and floor tiles have a lower temperature compared to others. c) all objects have the same temperature except my body which is warmer.
- The height of the Washington Monument is measured to be 170 m on a day when the temperature is 32.0°C. What will its height be in meters on a day when the temperature falls to -15.5°C? Although the monument is made of limestone, assume that its thermal coefficient of expansion is the same as marble's. (Assume the temperature of the entire monument changes from 32.0°C to -15.5°C. Enter your answer to at least five significant figures.)A 450 g metal cube which is originally at 110 degree(s) C oven is dropped into 0.003 m3 of water in a at 70 degrees Celcuis in an insulated cup. After both water and cube reached thermal equilibrium, the final temp is 78 degrees Celsius. What is the specific heat capacity of the uknown metal cube? cWater= 4200 j/kgK cCube=? A. 2800 j/kgk B. 7000 j/kgk C. 6500 j/kgk D. 5100 j/kgk E. NoneMetal rod A is 30.0 cm long and expands by 0.0650 cm when its temperature is raised from 0.00°C to100.0°C. Metal rod B of the same length expands by 0.0350 cm for the same rise in temperature. What are their linear coefficient of thermal expansions?
- The height of the Washington Monument is measured to be 170 m on a day when the temperature is 37.0°C. What will its height be in meters on a day when the temperature falls to - 15.5°C? Although the monument is made of limestone, assume that its thermal coefficient of expansion is the same as marble's. (Assume the temperature of the entire monument changes from 37.0°C to -15.5°C. Enter your answer to at least five significant figures.)If you lie on the ground at night with no cover, you get cold rather quickly. Much of this is due to energy loss by radiation. At night in a dry climate, the temperature of the sky can drop to -40◦F. If you are lying on the ground with thin clothing that provides little insulation, the surface temperature of your skin and clothes will be about 86 ◦F. Estimate the net rate at which your body loses energy by radiation to the night sky under these conditions.A 6.25 kg block ice at 0 degrees Celsius is being warmed on a glass stove top. The thermal conductivity of the glass is 1.00 W/ (m K) and the glass is 0.50 cm thick. If the radiator plate underneath the glass raises the temperature of the bottom of the glass to 125 degrees Celsius, how long would it take to completely melt the ice? Assume the ice remains a solid rectangle with a square base of side 15 cm as it melts. B. What is the rate of entropy change in Joules/ Kelvin/ seconds of the melting ice?