Ex. 105 : A body cools at the rate of 0.5 C/s. When it is 50°C above the surrounding temperature. What is its rate of cooling when it is at 30°C above the surrounding temperature ?

Q: DETAILS SERPSE10 19.2.OP.004. A brass calorimeter cup with a specific heat of 380 1/(kg- °C)…

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A: Given:The average release of heat per year is, Havg=0.03 J/kg.yearSpecific heat capacity, c=800…

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A: When heat energy is supplied to or absorbed from an object the temperature of the object will…

Q: Ex. 124 A body cools from 75° to 55°C in 10 minutes in a surrounding of 31°C. At what temperature…

A: To find-Temperature of body (θ)=?Given-θ1=750 Cθ2=550 Ct1=10 minθ0=310 C

Q: .A 70Kg runner loses 0.5kg of water each hour through evaporation of perspiration in order to…

A: The problem is easy if use conservation of energy energy or we can say that calorimetry law that is…

Q: Ice at 0°C is placed in a Styrofoam cup containing 0.32 kg of lemonade at 27 °C. After the ice and…

A: The solution is given below: Given: temperature of ice T_i =0°Cmass of lemonade m_l =0.32…

Q: In a warm room a naked resting person has a skin temperature of 33°C if the room temperature is 29°…

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Q: A styrofoam cooler has a total surface area of 1.3 square meters and a thickness of 2.2 centimeters.…

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Q: Ex. 109: A metal sphere cools at the rate of 3°C minute when its temperature is 50°C. Find its rate…

A: To find-Rate cooling dθdt2=?Given-dθdt1=30C/minθ1=500Cθ2=400Cθ0=250C

Q: Suppose you want to raise the temperature of a 0.21-kg piece of ice from -20.0degrees Celsius to…

A: Given data, Mass =m=0.21 kg Latent heat of fusion Lf=334 kJ/kg Latent heat of vaporization Lv=2256…

Q: Two 50-g ice cubes are placed into 0.2kg of water in a Styrofoam cup. The water is initially at a…

A: Given: The mass (m) of an ice cube is 50 g. The mass (M) of the water is 0.2 Kg. The initial…

Q: On a hot dry day, evaporation from a lake has just enough heat transfer to balance the 1.00 kW/m2 of…

A: The rate of heat coming from the Sun isThe time of evaporation of the lake water is The latent heat…

Q: You have 500 g of hot water at 50oC in a well-insulated thermal cup. You think the water is too hot…

A: Solution -Heat -heat, energy that is transferred from one body to another as the result of a…

Q: A uniform steel plate has an area of 0.839 m². When subjected to a temperature difference between…

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Q: Aluminum is often melted down for recycling purposes. Assuming 1 kg of aluminum is at 20 deg C (room…

A: Write the given values with the suitable variables. m=1 kgT1=20 °CC=899 J/kg°CT2=660 °CL=3.97×105…

Q: A rectangular window in a home has a length of 1.5 m and a height of 0.80 m. If the window allows…

A: Given Data: Length of window L=1.5 m Height of window h=0.80 m Heat is escaping at a rate of Qe=2000…

Q: There is a .32 kg block of silver that is 21 °C. If silver's melting point is 961°C, how much…

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Q: In a warm room a naked resting person has a skin temperature of 33k°if the room temperature is…

A: Ans:- Image-1

Q: Problem 4. A perfectly insulating thermos bottle is filled with 500 g of water at a tem- perature of…

A: Th principle of calorimetry states that for an insulated system, the heat gained by a body will be…

Q: Rate of cooling of a body is 20C/min at temperature of 600C and 10C/min, when it is  at 450C. What…

A: To answer: The temperature of the surrounding.

Q: A 6.0 kg zinc cannonball has been sitting in the desert sun all day. Its temperature is 49°C. Night…

A: Specific heat capacity of a substance is the quantity of heat needed to raise the temperature per…

Q: A certain amount of 50 g ice is dipped into 200 g of water in a container. thermally insulated. If…

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Q: Compute for the amount of heat that a 2.3-liter of sweat can remove from Joe's 70-kg body via…

A: The density of water is ρ=1 g/cm3 The volume of the sweat can be converted to cm3 as: V=2.3…

Q: On a nice winter day at the South Pole, the temperature rises to -60F. What is the approximate…

A: Given Temperature = -60 F

Q: a) A 500 joule of heat energy is transferred to 52 gram of mercury. By how much does the temperature…

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