A 2.3-kg lead ball is placed in a 2.5-L insulated pail ofwater initially at 20.0°C. If the final temperature of thewater–lead combination is 32.0°C, what was the initialtemperature of the lead ball?

Q: Q1/ 0.8 m³/s of air at 5°C WBT and 10°C DBT enter a chamber. The air absorb 40 KW sensible heat…

A: Given, Volume flow rate of air Q˙v=0.8 m3/sec Inlet condition t1'=50C  WBTt1=100C DBTHeat absorbed…

Q: A high-pressure gas cylinder contains 52 L of toxic gas at a pressure of 1.65.10' N/m² and a…

A: According to ideal gas law,

Q: A 69.77 gram brass is kept initially at a high temperature Tc  then is dropped into 118.16 gram of…

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Q: Air enters the evaporator section of a window air conditioner at 14.7 psia and 90°F with a volume…

A: Given: Air enters the evaporator section of a window airconditioner at 14.7 psi and 90°F with a…

Q: 4. A calorimeter contains 1.500kg of water at 80.0°C. Then 0.500kg of ice at -5.00 Cis added to the…

A: The heat capacity of water is C= 4.187 kJ/ kg K and for ice, it is c = 2.108 kJ/kg K.

Q: A pond with a flat bottom has a surface area of 810 m 2and a depth of 2.5 m. On a warm day, the…

A: The rate at which heat is transferred by conduction is given as Qt=kATh-TcLHere Q is the heat…

Q: In a nuclear power plant, a 1.0 kg of water at 61.7 °C is converted into 1.0 kg of steam at 133.2…

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Q: Solar radiation heats the surface after sunrise, and the resulting heat flux F to the atmosphere is…

A: Given: The heat flux to the atmosphere is F=Fmaxcos2πt-tnoon∆t. The value of Fmax is 300 Wm2. The…

Q: Meal + w = 327.9g 15.4g Thot = 100.0 oC M Tcool = 20.1 oC cal 312.5g 772.2g Mw Trinal = 40.4 o C M.…

A: Energy lost by the cooling metal should be equal to the energy gained by water.

Q: An electric toaster works by radiative heat transfer. On each side of a four-slice toaster, there…

A: Let P be defined as the power the toaster consumes while operating. Therefore, using Stefan’s law,…

Q: An ordinary drinking glass is filled to the brim with water (268.4 mL) at 2 deg C and place on the…

A: Given: The volume of the water is 268.4 mL. The initial temperature is 2°C. The final temperature is…

Q: What is the heat capacity of a system consisting of 8.10 kg of water in a 0.310-kg aluminum bucket?…

A: Write the given values with the suitable variables. mw=8.10 kgma=0.310 kgCa=0.9 kJ/kg KCw=4.186…

Q: A thermopane window consists of two glass panes, each 0.50 cm thick, with a 1.0-cm-thick sealed…

A: Solution:   a) We know that,   The rate of energy transfer through the material in terms of thermal…

Q: TE-3 A metal bar changes length by 0.01000% for a temperature change of 400.0 °C. This means that…

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Q: An ice chest is constructed of Styrofoam (k = 0.033 W/moC) with inside dimensions of 25 by 40 by 100…

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Q: solar panels have an emissivity of e=0.465. When in direct sunlight they absorb energy at rate of…

A: Given The emissivity of the solar panel is e = 0.465. The rate of energy observation is Q/t = 857…

Q: Anyperthermic male weighing 104kg, has a mean body temperature of 42°C. He is to be Cooled to 37°C…

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Q: Refrigerant-134a enters a compressor at 180 kPa as a saturated vapor with a flow rate of 0.35 m3/min…

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Q: copper calorimeter can with mass 0.100 kg contains 0.160 kg of water and 0.0180 kg of ice in thermal…

A: Mass of calorimeter , water and ice is given. Lead is added into calorimeter.

Q: 2 of surface area 34°C, ε=0.9 skin and is outside exercising on a h=10 W/m2K, 15°C day. The student…

A: Given:- Area A = 1.5 m2  Surface Temperature T1 = 340 C  Emissivity e = 0.9  h = 10 W/m2K  The…

Q: (a) The number of kilocalories in food is determined by calorimetry techniques in which the food is…

A: Given: The mass of peanut is mp=4.6 g. The mass of water is m=0.6 kg. The mass of aluminium is…

Q: A pipe 30 m long with an outer diameter of 75 mm is used to convey steam at a rate of 1000 kg /…

A: given,length of pipe=30moutter diameter =75mmsteam rate=1000kg/hourvapour pressure =198.53kPathermal…

Q: In the lab, you have nails with mass Mn and temperature Tn. You submerge those nails in the water…

A: Given data The Specific heat capacities of nails is,Cn=0.12 cal/gC The Specific heat capacities of…

Q: A circular lake 1.0 km in diameter is 18 m deep. Solar energy is incident on the lake at an average…

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Q: A 100-mL cylindrical lead container was completely contained with mercury at 20.0°C. If it was…

A: The equation for the volume expansion is as follows: ΔV=γVΔT, where ΔV is change in volume V the…

Q: During an intense 30-minute fat-burning workout class, the instructor maintains an average power…

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Q: In a nuclear power plant, a 1.0 kg of water at 35.9 °C is converted into 1.0 kg of steam at 151.9…

A:

Q: A cube of aluminum has an edge length of 20 cm. Aluminum has a density 2.7 times that of water (1…

A: Given data:  Edge length of cube (a) = 20 cm Density of aluminium (ρ) = 2.7 g/cm3 Specific heat…

Q: (a) How much heat transfer (in kcal) is required to raise the temperature of a 0.550 kg aluminum pot…

A:

Q: During a plant visit, it was observed that a 1.5-m-high and 1-m-wide section of the vertical front…

A: Calculate the film temperature, and write the data from the properties of the air at this film…

Q: Indigenous peoples sometimes cooked in watertight baskets by placing enough hot rocks into the water…

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Q: Two 20.0 g ice cubes at -13.0 °C are placed into 245 g of water at 25.0 °C. Assuming no energy is…

A: Given:Total mass of ice cubes Initial temperature of ice cubes Mass of water Initial temperature of…

Q: A block of ice is kept pressed against one end of a circular copper bar of diameter 2 cm, length 20…

A:

Q: A satellite can stay in orbit around the Earth for a rather long time, and if we neglect frictional…

A: when an object rotates about any axis a force acting on it which is acted towards outward direction…

Q: The air stream flows through a steel pipe of 38.1 mm inner diameter at a velocity of 6.71 m / s and…

A: SOlution: Given that d = 38.1 mm v = 6.71 m/s

Q: much heat transfer (in kcal) is required to raise the temperature of a 0.600 kg aluminum pot…

A: Given mass of aluminium = 0.6 kg  Mass of water = 3 kg  Initial temperature = 10 0 C  Final…

Q: Radiant heat makes it impossible to stand close to a hot lava flow. Calculate the rate of heat loss…

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Q: An unknown piece of metal is heated to 98.0°C and dropped into a coffee cup calorimeter containing…

A: Given:- An unknown piece of metal is heated to 98.0°C and dropped into a coffee cup calorimeter The…

Q: A diver releases an air bubble of volume 2.35 cm3 from a depth of 18.0 m below the surface of a…

A: Volume of air bubble below the surface of lake (Vo) = 2.35 cm3depth (d) = 18 m Temperature below the…

Q: A metal bar is made up of 3.0cm of aluminum  and 5.0cm of steel. The free end of the aluminum bar is…

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Q: A container which is air tight has a volume of * 2 * 500L internal pressure of 1.0 atmosphere,…

A: Solution: we have Relation       p1v1T1=p2v2T2 where p1=1 atm.v1=103 LT1=288 kp2=175 atm.T2=276…

Q: A cube of ice is taken from the freezer at -8.5°C and placed in a 100 gram aluminum calorimeter…

A: