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- What must be the height of a 200mm diameter vertical pipe carrying hot liquid so that the surrounding area becomes 38degrees C? Note that the rate of convection is 6 KWatts and the surface of the plate is around 90degrees C. answer in meters. (3 decimal places)Some amount of heat energy is removed from a 9cm X 22cm X 16cm block of ice to cool from 0°C to -12°C. (Hint: to find mass, use the relation between, density, mass and volume) Calculate the following: a) The mas of ice cube in grams (density of ice = 920 kg/m3). %3D b) The temperature difference in kelvin b) The energy removed from ice in calories - (specific heat of ice = 2093 J/kg°C)Thermal energy is added to 180 g of water at a constant rate for3.5 min, resulting in an increase in temperature of 12 C°. What isthe heating rate, in joules per second?
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- An unknown material bar having length of 2.7m has 1m2 cross sectional area. One end is in contact with 373K and another end is 273K. Thermal conductivity of the material is 350W/mK. The total rate of heat flow is . .Joules/second. (Calculate up to one decimal point accuracy).Some amount of heat energy is removed from a 9cm X 26cm X 46cm block of ice to cool from 0ºC to -26ºC. (Hint: to find mass, use the relation between, density, mass and volume) Calculate the following: a) The mas of ice cube in grams (density of ice = 920 kg/m3). b) The temperature difference in kelvin b) The energy removed from ice in calories . (specific heat of ice = 2093 J/kgºC)Water freezes at 0°C at atmospheric pressure (1.01×105 Pa). The densities of water and ice at this temperature and pressure are 1000 kg/m³ and 934 kg/m³ respectively. The latent heat of fusion is 3.34×105 J/kg . The pressure required for increasing the melting temperature of ice by 10°C is.... GPa. (up to two decimal places)
- In determining the thermal conductivity of an insulating material, the temperatures were measured on both sides of a flat slab of 25 mm of the material and were 318.4 and 303.2 K. The heat flux was measured as 35.1 Calculate the btu thermal conductivity in and inCalculate final temperature of 30 g of water heated with 2,780 J. The heat capacity of water is 4190 J/kg / C ◦ The initial temperature of water is 0 C ◦ Calculate to one decimal.Q.2/A thermocole cubical ice box of side 30 cm has a thickness of 5.0 cm. If 4.0 kg of ice is put in the box, estimate the amount of ice remaining after 6h. The outside temperature is 45C, and thermal conductivity of thermocole box is 0.01 Js'm k, knowing thatilatent heat of fusion is 335* 10 J/kg.