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Express answer in Cal/g*C degrees
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- The volume of a certain liquid varies with temperature as ? = ?0(0.75+ 3.9 × 10-4T + 1.48 × 10-6 T2) where ?0 is its volume at 300 K. Calculate its volume expansivity ? at 320 K.5.11 A heating and air-conditioning engineer is designing a sys- tem to move 1000 m of air per hour at 100 kPa abs, and 30°C. The duct is rectangular with cross-sectional dimensions of 1 m by 20 cm. What will be the air velocity in the duct?How much heat (in cal) is needed to heat a container of water (with a mass of 4.1 kg) (specific heat 1.00 cal/g deg C) from 16 deg Celsius to boiling (100 deg Celsius)?
- A 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 30 degrees celcius, 20 g silver ring is placed on a 20 degrees celcius, 30 g glass ring holder. If the specific heat capacities of silver and glass are 230 and 840 J/kg degrees Celcius. What is the equilibrium temp of ring and ring holder? Please answer in degrees celcius.9. The conduction heat flux through a wall is known to be 2020 W/m² and the convection heat flux from the outer surface of the wall is 1650 W/m². It is also known that the temperature on the outer surface and the surrounding are 373 K and 298 K respectively. Find the emissivity, &, of the outer surface of the wall. = 5.67 x 10-8 W/m²K4) (o= (Ans: ε = 0.569)
- Calculate the total heat transfer from the 5.0 m² surface shown in the figure. Tur = 0°C h = 40 W/m²-K T = 180°C ɛ = 0.90 fluid T = 10°C insulatedGive the Fahrenheit and Kelvin equivalent of the following Celsius temperature а. 120° С b. 77° C С. 65 ° C d. - 10 ° C е. 4°CA Pyrex baking dish with a mass of 545g warms up by 96.7 eC when it absorbs s0.9 kJ of heat an oven. What is the specific heat capacity of the dish in J/g°c? Tc0, 9222 56S b) If 7.5 kg of ice at O°C is put into an icebox, how many joules of heat are absorbed from the other items in the icebox as the ice melts? (For H2O, AHus Lt 334.7 J/g & AHvap Ly 2259.4 J/3) c) How much energy Joules) is required to boil off 1 gallon (3786g) of water that starts out at 21.50C? (See pt. b above for useful constant.)