You decide to take a nice hot bath but discover thatyour thoughtless roommate has used up most of the hot water. Youfill the tub with 195 kg of 30.0C water and attempt to warm it furtherby pouring in 5.00 kg of boiling water from the stove. Calculate the final temperature of the bath water.

Q: How much heat energy must be added to a 6.8-cm-diameter copper sphere to raise its temperature from…

A: CONCEPT: Given, Diameter of copper sphere = 6.8 cm Radius of copper sphere, r = 3.4 cm We know,…

Q: A house has well-insulated walls. It contains a volume of 100 m3 of air at 300 K. (a) Calculate the…

A: Type of room is insulated  Volume of air: V = 100 m Temperature of room: T = 300 K Change in…

Q: Heliox, a mixture of helium and oxygen, is sometimes given to hospital patients who have trouble…

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Q: A 2.44 m wide by 1.15 m high metal plate must be insulated to prevent contact burn injuries. If the…

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Q: A heating coil inside an electric kettle delivers 5.10 kW of electric power to the water in the…

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Q: A 3-m3 rigid tank contains hydrogen at 250 kPa and 550 K. The gas is now cooled until its…

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Q: A container holds 2.0 g of Helium at a pressure of 6.0 atm. (a) How much heat is required to…

A: Let n denotes the number of moles of the Helium gas. Let m is the mass of the Helium in a container…

Q: A rubber ball of radius 2.52 m and emissivity 0.940 is heated to 128°C. HINT (a) Convert the given…

A: a) The given temperature in kelvin is TK=T°C+273=128+273=401K

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

A:

Q: In an insulated container, 0.50 kg of water at 80 degree C is mixed with 0.050 kg of ice at -5.0…

A: Since at first ice will absorb heat to melt and then converted into the water.Since heat lost by the…

Q: 50.0 g ice cube, intially at 0° C, is dropped into a Styrofoam cup containing 350 g of water,…

A:

Q: If you pour 0.0100 kg of 20.0C water onto a 1.20-kg block of ice (which is initially at -15.0C),…

A: given quantities: mass of water (m) = 0.0100 kg mass of block of ice (M) = 1.20 kg specific heat of…

Q: dermatologist often remove small precancerours skin lesions by freezing them quickly with liquid…

A: It is given that,

Q: A metal sphere with radius 3.20 cm is suspended in alarge metal box with interior walls that are…

A: (a) The Stefan’s law can be employed to find out the emissivity of the metal sphere. The rate at…

Q: A rubber ball of radius 1.72 m and emissivity 0.940 is heated to 128°C. HINT (a) Convert the given…

A: Given values -  Radius =r =1.72 mEmissivity=e=0.940Temperature=T1=128oC

Q: You want to cool a crate of beer for Saturday's barbecue. Assume the crate has a heat capacity C=10…

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Q: How much hea Express your Q = V

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Q: (a) Compute the specific heat at constant volume of nitrogen(N2) gas, and compare it with the…

A: The relation between molar heat capacity and molar mass is: c=CvM; c=specific heat capacity,…

Q: A thirsty nurse cools a 2.00-L. bottle of a soft drink (mostly water) by pouring into a large…

A: Here we will see that the heat is gained by ice will be equal to heat is lost by aluminium mug and…

Q: A steel bar 10.0 cm long is welded end to end to a copper bar 20.0 cmlong. Each bar has a square…

A: Given: The length of the steel bar is L=10 cm. The length of the copper bar is l=20 cm. The free…

Q: A 2.75-g copper coin at 20.0°C drops 60.0 m to the ground. (a) Assuming 55.0% of the change in…

A: (a)Consider a copper coin of mass m is at initial temperature Ti and at height h from the ground…

Q: Steam at 320°C flows in a stainless steel pipe (k =15 W/m·K) whose inner and outer diameters are 5…

A: Diagram of the system:

Q: (a) How much heat transfer is required to raise the temperature of a 0.750-kg aluminum pot…

A: a) The heat required is given by,

Q: A pronghorn antelope can run at a remarkable 18 m/sm/s for up to 10 minutes, almost triple the speed…

A: mass (m) = 32 kg speed (v) = 18 m/s Power = 3.4 kW = 3400 Wtime = 10 minutes

Q: An insulated beaker with negligible mass contains 0.250 kg ofwater at 75.0°C. How many kilograms of…

A: Given The mass of water is mw=0.250 kg. The initial temperature of water is Tiw=75°C. The initial…

Q: P2-50 Nitrogen at 850 K, 2 MPa expands slowly and adia- batically until the final temperature is 300…

A:

Q: We often cut a watermelon in half and put it into the freezer to cool it quickly. But usually we…

A: Initial temperature of watermelon Ti=25oC=298 K, final temperature of watermelon Tf=3oC=276 K,…

Q: (a) How much heat transfer is required to raise the temperature of a 0.766-kg aluminum pot…

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Q: You are asked to test a machine that the inventor calls an“in-room air conditioner”: a big box,…

A: The Law of Conservation of Energy. In order to cool the air coming out of the machine, some other…

Q: A 1.50-kg iron horseshoe initially at 590°C is dropped into bucket containing 23.0 kg of water at…

A: Given value--- mass of iron horseshoe = 1.5 kg. temperature of iron horseshoe = 590 degree C. mass…

Q: ENGINEERING APPLICATION. A O.40-kg hot iron horseshoe, just forge (see the accompanying figure), is…

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Q: A copper pot with a mass of 0.500 kg contains 0.170 kg ofwater, and both are at 20.0°C. A 0.250 kg…

A: Given data mc=0.5 kgmw=0.17 kgmir=0.25 kgTc1=20°cTr1=85°c

Q: The figure shows a copper disk of radius r and thickness 1, with a hole through its centre of radius…

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Q: A rubber ball of radius 2.12 m and emissivity 0.940 is heated to 128°C. HINT (a) Convert the given…

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Q: a) Two materials, aluminum (intial length, 6 m) and ordinary glass (initial length, 5 m) are…

A: The coefficient of expansion of aluminum is αAl = 23*10-6 oC The coefficient of expansion of glass…

Q: A 300 g glass thermometer initially at 35 ◦C is put into 164 cm3 of hot water at 94 ◦C. Find the…

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Q: A 100 g ice cube at -20oC is dropped into a thermally insulated container containing water at 40oC.…

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Q: What mass of water at 30.0°C must be allowed to come to thermal equilibrium with a 1.80-kg cube of…

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Q: In a container of negligible mass, 0.0400 kg of steam at100°C and atmospheric pressure is added to…

A: Process that will happen is - Case(1) First steam will loose energy to convert in water at 373 K and…

Q: In some countries, liquid nitrogen is used on dairy trucks instead of mechanical refrigerators. A…

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Q: (a) How much heat transfer (in kcal) is required to raise the temperature of a 0.650 kg aluminum pot…

A: For this problem we use calorimetry, Firstly water goes from 10°C to 100° C water then it will start…