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A: Its a concept of latent heat of fusion
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A: for Ideal gas pv =nRT n =pv/RT = 1.48*91.2 atmd/0.082*268.5 atm.lk./k = 6.13
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A: Given- L0=600 m∆T=50-30=200Cwe haveα=11×10-6
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- (a) What is the rate of heat conduction through the 3.00-cm-thick fur of a large animal having a I .40-m surface area? Assume that the animal's skin temperature is 32.0 , that the air temperature is 5.00 , and that has the same thermal conductivity as air. (b) What food intake will the animal need in one day to replace this heat transfer?Calculate the rate of heat conduction out of the human body, assuming that the core internal temperature is 37°C, the, the skin temperature is 35°C, thickness of the tissues between averages 1 cm, and the surface area is 1.6 m². Assume thermal conductivity of the tissue is 0.2 W/m/K) ○ A. 46.0 W O B. 96.4 W ○ C. 64 W ○ D. It cannot be calculated as the type of dress worn is unknown. ○ E. -90 W2292.900.0DO POKCA3 7 How C How much energy is required to convert 5.0kg of ice at 0°C to water at 30°C? PI montr notour otply Factor hatent heat fusion of ice. 4= 3·33 x 105kg 3 Specific heat capacity of water: 418bJ/kg °c 38!= t A Pi-ad = VA
- 8.00 g of ice at 0.0000 C is added to 240 mL of hot coffee at 90.00 C in a thermos. What is the final temperature of the mixture when thermal equilibrium is attained? Some useful infrormation: cwater = 1.00 cal/goC, and Lfwater = 80.0 cal/g. a. 63.40 C b. 70.3o C c. 84.5o C d. 94.3o C e. 89.0o C.A 3.00-kg copper rod is 45.0 cm long at 24.8°C. If 45 000 J are transferred to the rod by heat, what is its change in = 387 J/kg °C and acopper -= 17.0 × 10-6/°C. ength? Ccopper a. 34.4 cm b. 0.0297 cm c. 0.133 cm d. 0.0445 cm e. More information is needed.If the temperature of the surface of the object is 565.1K, then calculate its value in °F. O a. 557.78 O b. 292.10 Oc. 1049.18 O d. 1476.58
- If the temperature of the surface of the object is 690.8 K, then calculate its value in °F. O a. 417.80 O b. 784.04 O. 1702.84 O d. 1275.441. a) A man weighing 765 N is on a bed of nails. Calculate the pressure exerted by each nail if there are 1,000 nails and each tip has a radius r = 0.500mm (5.00 x 104 m). b) Calculate the pressure exerted on the skin by acupuncture needle of radius r = 0.100mm (1.00 x 10 m) applied with a force of 3.00 N. Ans. a. 9.74 x 10³ Pa b. 1.59 x 108 Pa [Note that the Coletta text uses N/mm², which is a needless use of non-SI units.]A. 0.80 m³ D. 7.0 m³ B. 1.25 m³ E. 11 m³ C. 1.9 m³ F. none of the above 1--1 NRDHW A helium-filled balloon has volume 3.5_m³, temperature 21.6°C, and pressure 1 atm while at sea level. If the balloon rises to 27000 ft, where the temperature is 5.1°C and the pressure is about 1/3 of its sea-level value, then find the new volume of the balloon. 7. A. 6.873 m³ D. 14.73 m³ B. 9.912 m³ E. 9.869 m³ C. 15.41 m³ F. 13.31 m³ 1--1 [carpet-6] MXJWA A 4.2 L volume of neon gas (Ne) is at a pressure of 4.1 atm and a temperature of 460 K. The atomic mass of neon is 20.2_g/mol, and the ideal gas constant is R = 8.314.J/mol K. The mass of the neon gas is closest to
- 3 R.Calculate the AS (J/K), if Fini The temperature of 6 mole of an ideal gas is increased from 176 K to 750 K, and its given that C,=R the volume is constant. O a. 72.3 O b. 542.3 о с. 162.7 O d. 108.557007 i. Heat is absorbed by a 20g granite boulder with causes its W год a Specitiv Heat of Oil callgºl as temperature to change from 10°C to 29º. Determine the change in temperature in degree RankingQ4. The following figure shows the specification of a disk, given that disk thickness is 15 mm, and brass thermal conductivity = 123 W/m C. Find the following: Ra - Semm 1- Heat transfer rate. 1-124 C 2- Temperature gradient RI 30mm Tl-17C