Calculate the heat flux through a 5 mm sheet with a temeptaure gradient of 0.3oC. (k = 0.350 W·m-1.0C-1)
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- Can you show me how to solve this?A 365-g sample of an unknown (nongaseous) material experiences a 16.0°C increase in temperature after absorbing 9.93 ✕ 103 J of energy. (a) What is the specific heat of this material? J/(kg · °C)(b) Which substance listed in the specific heat and molar specific heat table best matches the specific heat of this unknown material? mercurysilver brassgraniteglassaluminumwoodseawater(a) How much heat transfer (in kcal) is required to raise the temperature of a 0.650 kg aluminum pot containing 3.00 kg of water from 10.0°C to the boiling point and then boil away 0.600 kg of water? X kcal Enter a number. (b) How long (in s) does this take if the rate of heat transfer is 600 W (1 watt = 1 joule/second (1 W = 1 J/s))?
- A long stainless steel rod [k = 16 W/m .OC] has a equilateral triangle cross section. It is attached to a plane wall which is maintained at a 450OC. The surrounding environment temperature is 50 OC. Calculate the heat dissipated by the rod, assume the value of surface conductance h is 90 W/m .OCConsider the following selected properties of water: Consider the following selected properties of water: Density (liquid water): d = 1.00 g/mL Heat of fusion: AHfus = 6.01 kJ/mol Heat of vaporization: AHvap = 40.67 kJ/mol Specific heat (liquid water): Cp = 4.184 J/(g-K) = 4.184 J/(g-°C) How much heat is needed to completely evaporate 36 mL of water at its normal boiling temperature? 47 J 81 J 47 kJ 110 kJ 81 kJA copper block with a mass of 400 grams is cooled to 77 K by being immersed in liquid nitrogen. The block is then placed in a Styrofoam cup containing some water that is initially at +50.0°C. Assume no heat is transferred to the cup or the surroundings. The specific heat of liquid water is 4186 J/(kg °C), of solid water is 2060 J/(kg °C), and of copper is 385 J/(kg °C). The latent heat of fusion of water is 3.35 x 105 J/kg. What is the mass of water in the cup, if the final temperature is -25.0°C?
- A cube of ice is taken from the freezer at -9.5 °C and placed in a 95-g aluminum calorimeter filled with 300 g of water at room temperature of 20.0 °C. The final situation is observed to be all water at 16.0 °C. The specific heat of ice is 2100 J/kg · C°, the specific heat of aluminum is 900 J/kg · C°, the specific heat of water is is 4186 J/kg·C°, the heat of fusion of water is 333 kJ/Kg. Part A What was the mass of the ice cube? Express your answer to two significant figures and include the appropriate units. ? Value Units m = Submit Request AnswerA 1.82 m wide by 1.11 m high metal plate must be insulated to prevent contact burn injuries. If the heat transfer rate is 136 W and the temperature across the insulation must be reduced from 87.3°C to 40.3°C, what is the minimum thickness (in cm) of insulation required [round your final answer to two decimal places]? {kins = 0.031 W/m∙K}a wall consist of 3.0 cm of exterior wood and 2.0 cm of interior wood spearated by a 15cm layer of polystyrene foam. if the interior is kept at 19 Celsius degree, calculate the outside temperature for which the heat loss through the is 10 W/m2