When you take a bath in 185 kg of water, how many kilograms of hot water (60.0°C) and cold water (25.0°C) must you mix, so that the temperature of the bath is 40.0°C. Ignore any heat flow between the water and its surroundings

Q: The specific heat of aluminum is 0.21 J/g°C. How much heat energy is released when a 10 g piece of…

A: Given:-  The specific heat of aluminum is 0.21 J/g°C The mass of aluminum foil is m = 10 g   The…

Q: 2) 100.0 ml of water is cooled from 75°C to 25°C. Assume that the density of liquid water is 1.0…

A: Use formula -  Q = mc ∆T  Here  Q: Heat , c : specific heat , ∆T : temperature Change

Q: The same amount of heat entering identical masses of different substances produces different…

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Q: A 2.00 kg metal object requires 5020 J of heat to raise its temperature from 20.0°C to 40.0°C. What…

A: Given data:  Mass (m) = 2.00 kg Heat energy (Q) = 5020 J Initial temperature (Ti) = 20.0°C Final…

Q: If you add 700 kJ of heat to 600 g of water at 60.0°C, how much water will be left in the container?…

A: Given data:  Total heat = 700 kJ = 700,000 J Mass (m) = 600 g = 0.600 kg Initial temperature (T0) =…

Q: If you add 700 kJ of heat to 600 g of water at 60.0°C, how much water will be left in the container?…

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Q: A human Body loses about 360 kJ of heat every hour at 23.4 0C. Assuming that an average human body…

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Q: A 700 cm X 1360 cm house is built on a 13.2 cm thick concrete slab of thermal conductivity 0.62…

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Q: A spring of force constant k= 8.40 × 103 N/m is compressed by 0.370 m. It is placed into a vessel…

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Q: A 880 cm X 1720 cm house is built on a 17.2 cm thick concrete slab of thermal conductivity 0.78…

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Q: A 59.7 gram piece of metal is placed in 60.0mL of water and heated from 22.0-28.5°C. What is the…

A: Question asks about the specific heat, but the options given are of heat.    Mass, m = 59.7…

Q: The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305…

A: Amount of heat,Q= MCdt Where M= mass of metal=  38.0 g  C= specific heat= 0.128 J/(goC) dt=change in…

Q: If 40 kcal of heat is added to 2.0 kg of water, what is the resulting temperature change?…

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Q: 20 kg of water at 0°C freezes and then cools to -20°C. If Lf = 334 kJ/kg and Cice= 2.05 kJ/kg·K, how…

A: given quantities: mass of water (m) = 20 kg latent heat of fusion (Lf) = 334 kJ/kg specific heat…

Q: A 820 cm X 1200 cm house is built on a 17.2 cm thick concrete slab of thermal conductivity 0.78…

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Q: The specific heat of gold is 0.129 J/g°C. How much heat is required to raise the temperature of 15…

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Q: A closed box is filled with dry ice at a temperature of -93.7 oC, while the outside temperature is…

A: The rate of heat conduction is given by

Q: A mixture containing 21.4 g of ice (at exactly 0.00°C) and 75.3 g of water (at 55.3°C) is placed in…

A: Mass of ice = mice = 21.4 g Mass of water = mw = 75.3 g Final/equilibrium temperature of the mixture…

Q: Question 16 A granite wall has a thickness of 78 cm, an area of 7.33 m by 2.85 m and a thermal…

A: Given:Thickness of granite wall, L = 78 cmArea of granite wall, A = 7.33×2.85 = 20.8905 m2Thermal…

Q: A 4.90-kg steel ball at 26.6°C is dropped from a height of 21.8 m into an insulated container with…

A: Given : Mass of steel (ms) = 4.90 kg Temperature of steel (Ts) = 26.6°C  Height (h) = 21.8 m Volume…

Q: how much heat is lost when a 640 g piece of copper cools from 375oc ,to 26oc?(the specific heat of…

A: Mass , m= 640 gm = 0.64 kg Initial temperature , T1 = 375 °C Final temperature , T2 = 26 °C…

Q: You are given 204 g of coffee (same specific heat as water) at 80.0°C (too hot to drink). In order…

A: Given Mass of coffee = 204 g Initial temperature of coffee = 80 °C final temperature of coffee = 60…

Q: of copper whose mass is 15 kg has a specific heat capacity 390 J/kgx and is warmed by Coco Martin so…

A: Mass of copper, m=15 kg Specific heat capacity, C=390 J/kg OC CChange in temperature = 5 o C

Q: A granite wall has a thickness of 77.2 cm, an area of 6.48 m by 2.67 m and a thermal conductivity of…

A: Heat transfer in time t is given by  dQdt=-KAdTdxdQ =-KAdTdxdtQ=-kA∆Tthickness×tk=thermal…

Q: A closed box is filled with dry ice at a temperature of -88.3 oC, while the outside temperature is…

A: The rate of heat conduction is given by

Q: A chunk of nickel weighing 19.8 grams and originally at 98.72°C is dropped into an insulated cup…

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Q: You have 54 g of steam at 100°C. How much heat must be removed to change it to 54 g of water at…

A: Given data:  Mass (m) = 54 g = 0.054 kg Initial temperature (T0) = 100 °C Final temperature (T) = 20…

Q: At what rate is heat lost through a 1.3 m x 2.7 m rectangular glass window that is 0.32 cm thick…

A: Given data as per question  thickness  =   0.32 cm T1       =    16 T2    =   22 K    =   0.75w/mK

Q: What is the rate of heat transfer by radiation, with an unclothed person standing in a dark room…

A: Given: The ambient temperature of the room is 22.0 C. The normal temperature of the skin is 33.0 C.…

Q: A metal rod with a diameter of 2.30 cm and length of 1.10 m has one end immersed in ice at 32°F and…

A: We have a rod of diameter d=2.3 cm (radius r=d/2=1.15 cm) and length h=1.1 m whose one end is…

Q: How much thermal energy is absorbed by a 0.0220 kg ice cube as it melts? The latent heat of fusion…

A: Assume initially the ice is at 0°CMice=0.022 kgLatent heat LH=3.4x105 J/kg

Q: A person is standing outdoors in the shade where the temperature is 33 °C. What is the radiant…

A: Solution       Given T = 33°                  e = 0.85

Q: A person is standing outdoors in the shade where the temperature is 33 °C.  The surface area of the…

A: The radiant energy absorbed per second is calculated by using the formula P=εσAT4 , where ε=0.65 is…

Q: How many kilograms of water must evaporate from a 49.2 kg woman to lower her body temperature by…

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Q: A 22 kg sample of ice is at 0.00° C. How much heat is needed to melt it? (For water L=334 kJ/kg and…

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Q: A 900 cm X 1080 cm house is built on a 17 cm thick concrete slab of thermal conductivity 0.74…

A: GivenDimension of house =900 cm×1080 cmThickness of concrete slab, ∆x=17.6 cmThermal conductivity,…

Q: A solid concrete wall has dimensions 4.0 m × 2.4 m and is 30 cm thick. The thermal conductivity of…

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Q: A 780 cm X 1320 cm house is built on a 12 cm thick concrete slab of thermal conductivity 0.68 W/m.K.…

A: Given that--- A 780 cm X 1320 cm house is built on a 12 cm thick concrete slab of thermal…

Q: The same amount of heat entering identical masses of different substances produces different…

A: The amount of heat required to raise the temperature is

Q: If I have an unknown substance of mass m=2.54kg which requires Q= 3430J of heat to change its…

A: mass of unknown substance (m) = 2.54 kg Heat (H) = 3430 J Change in temperature = 10 kelvin

Q: Determine the rate of heat flow through a glass window 1.50 m high and 2.0 m wide. The thickness of…

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Q: A 0.250-kg aluminum bowl holding 0.800 kg of soup at 25.0 C is placed in a freezer. What is the…

A: mbowl = 0.25 kgmsoup = 0.8 kgTi = 25°C = 298 KQrel = 377 × 103 JcAl = 900 J/kg °C =cbowl cwater =…

Q: 1.) 100.0 ml of 4°C water is heated until it reaches 37 C. Assume that the density of liquid water…

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Q: A 700 cm X 1320 cm house is built on a 12.4 cm thick concrete slab of thermal conductivity 0.78…

A: Rate of heat loss = KA(∆T/∆x)  Where ∆T/∆x is the temperature gradient A = area  K= thermal…

Q: How much heat must be removed from a 200-g block of copper to lower its temperature from 150°C to…

A: Given, heat Qmust be removed from a mass m=200-g block of copper to lower its temperature from…

Q: A granite wall has a thickness of 76.3 cm, an area of 5.61 m by 2.95 m and a thermal conductivity of…

A: Given  thickness(d)=0.763 m area(A)=5.61 x 2.95 m2 conductivity (k)=2.1 W/(m 0 C) T2=28.2 oC…

Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.