What is the heat transfer required to freeze 2 liters of water at 50°C to ice at 0°C? (HINT: The specific heat capacity and latent heat of melting for water are Cwater 1. g°C cal and Lice-wate 80 cal respectively) 180 kilo calories 160 kilo calories 260 kilo calories 100 kilo calories

Q: 28.0j of heat is applied to a 5.0 sample of Hg in a thermometer that reads 25.0c what will be the…

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Q: The ends of a 20.2cm long, 1.5cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Part A. Area of cross-section = πR2=π1.5×10-222=1.767×10-4 m2   Part B. Heat Conduction = 47×103 J1…

Q: If 8000 cal of heat is needed to change the temperature of a certain amount of ice at -250C to steam…

A: Given If 8000 cal of heat is needed to change the temperature of a certain amount of ice at -250C to…

Q: A 300g piece of iron at 200 deg Celcius is placed in a 100g aluminum cup containing 220g of liquid…

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Q: When 12.27 grams of ice at - 20°C have absorbed 2500 calories of heat, what is the temperature of…

A: Given:-             mass of ice = 12.27 g      Ice temperature = -20° C total heat absorbed = 2500…

Q: Some gun fanciers make their own bullets, which involves melting and casting the lead slugs. how…

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Q: What is the heat transfer required to freeze 2 liters of water at 50°C to ice at 0°C? (HINT: The…

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Q: A gasoline tank in a car has a capacity of 60 L at 20ºC. If the tank is fully filled without a…

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Q: WITH INCREASING RELATIVE HUMIDITY 1. increase of the heat output by radiation 2. Reduction of the…

A: By increasing the relative humidity it increases the heat output by radiation due to the water vapor…

Q: How much steam with a temperature of 100° C must be added to 0.250 kg of ice at its melting point to…

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Q: 4 kg of ice at 0◦C is converted to steam at 100◦C. How much heat is needed? The heat of fusion…

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Q: If 15.8 MJ of heat is required to vaporize 18,5 kg ethyl alcohol at 78.5°c (its boiling point), what…

A: The heat of vaporization means the amount of heat needed to boil per mole of substance at its…

Q: A glass vessel with an insulating cover with a surface area of (74 + 100) cm2 and (74 + 15) mm thick…

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Q: 1000 kg of fish was placed on chiller box storage. The product temperature is 4°C.  Determine the…

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Q: 1.00 kg of solid Hg at its melting point of -39°C is placed in a 0.620-kg aluminum calorimeter with…

A: Mass of Hg=1 Kg Specific heat capacity of Hg= 138J/Kg0c Initial temp of Hg= -39c Final temperature…

Q: Material Specific Heat (J/kg °C) water (pure) 4,184 aluminum 900 steel 470 silver 235 oil 1,900…

A: Given :- mass of aluminum piece (M) = 0.8 Kg increase in temperature (T) = 15oC  specific heat of…

Q: The average thermal conductivity of the walls (including windows) and roof of a house in the figure…

A: According to given, Total area is given by, A= Area of end walls + Area of ends of attic + Area of…

Q: 5 kg ice at –40°C is mixed with 4.5 kg water at 40° C. Then final amount of water in the mixture…

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Q: The ends of a 18.2cm long, 1.5cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Given  Diameter d = 1.5 cm  Radius r = d/2 = 0.75 cm = 0.75×10-2 m Length l = 18.2 cm = 18.2×10-2 m…

Q: A slab of stone of area 0.36 m² and thickness 0.1 is exposed on the lower surface to steam at 100°C.…

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Q: Suppose one has a 50.0 ml sample of ethanol at 22.0oC (centigrade) and wants to warm it to 60.0oC…

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Q: If 10 grams of 20 degree water is mixed with 10 grams of 40 degree water, what would the final…

A: If (m1)10 grams water of (T1) 20 degree centigrade teperature mixed with (m2) 10 grams water of (T2)…

Q: The ends of a 19.8cm long, 1.5cm diameter rod are maintained at 0°C and 100°C by immersion in an…

A: Given data: Length, L=19.8 cm=0.198 m Diameter, d=1.5 cm=0.015 m Heat, Q=43×103J/h Temperature,…

Q: How much heat is required to melt 30 kg of ice at 0°C to water at 10°C? The latent heat of ice to…

A: Here the heat requirement shall comprise of two parts a) Heat required to raise temperature of water…

Q: thermal energy (in J) is required to boil 2.45 kg of water at 100.0°C into steam at 135.0°C

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Q: If 2.0 g of water at 0.00°C is to be vaporized, how much heat must be added to it? The specific heat…

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Q: The thermal conductivity of ice is 5.2 x10−4kcal/m-s-°C. At what rate is heat lost by the water in a…

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Q: a mixture consists of 70g of ice and 60g of liquid water, both at 0 degrees C. (latent heat of…

A: given mice=70gmwater =60gt=0°CL=80 cal/gCP=1 cal/gheat Q=mL+mCP∆T

Q: What is the heat in calories required to raise the temperature of 0.05 kg of water from 0 degrees C…

A: Given data:  Mass (m) = 0.05 kg Initial temperature (Ti) = 0°C Final temperature (Tf) = 100°C…

Q: The ends of a 18.2cm long, 1.7cm diameter rod are maintained at 0°C and 100°C by immersion in an…

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Q: Sixty grams of water are at an initial temperature of 26 °C. Calculate the heat required to…

A: Given data:  Mass (m) = 60 g Initial temperature (T0) = 26°C Final temperature (T) = 100°C Specific…

Q: How much heat is necessary to change 100g of ice at -20°C into water at 10°C? a) 2 Kcal b) 0.2 Kcal…

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Q: How much energy is required to change 2 kg of ice cube to steam. (Specific heat of water = 4200 J…

A: mass of ice cube = 2 kg specific heat of water = 4200 J kg-1C-1Latent heat of fusion = 334 kJ…

Q: We have 1lb of water at 25C in a paper cup. When you pour 30 g of boiling water into the cup, what…

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Q: How much heat is required to convert 200 grams of -25 °C ice into 150 °C steam? Useful…

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Q: A box ,total surface area 2.20m² and a wall thickness 6cm is made of an insulating material.10 W…

A: We have to find the thermal conductivity(k) of the insulating material. And it is given that we have…

Q: The lower surface of a slab of stone of face-area 3600 cm and thickness 10 cm is exposed to steam at…

A: Given  Area, A = 3600 cm2 = 0.36 m2  Thickness, d = 10 cm  Temperature, T1 = 100° C   Ice at T2= 0°…

Q: How much heat is necessary in kcal to change 15-lb of ice at -30 degrees C to water at 60 degrees C.…

A: Given data- mass of ice m=15 lb 1 lb=0.454 kg so m=15 × 0.454 kg=6.81 kg Lf=80 Kcal/Kg Lv=540…

Q: How much ice is needed to make ice tea at a temperature of 5 C from 140 grams of hot tea at 65 C…

A: Given:Mass of tea,M=140 gmMass of glass,mg=50 gmTemperature of tea,Ti=65°CTemperature of…

Q: When 7.59 grams of ice at - 20°C have absorbed 2500 calories of heat, what is the temperature of the…

A: The heat required for a change in temperature of an object is given by Q = mc∆T, where m = the mass…

Q: How much heat is required to heat 1.5kg of water from 7degree Celsius to 85degree Celsius

A: Given, Mass of water,m=1.5 kg Change in temperature, ∆T=85-7=78 °C Specific heat capacity of water,…

Q: How much heat (in cal) is needed to heat a container of water (with a mass of 4.1 kg) (specific heat…

A: Given data: Mass (m) = 4.1 kg = 4100 g Specific heat capacity (c) = 1.00 cal/g.°C Initial…

Q: How much heat in kcal must be added to 0.66 kg of water at room temperature (20 degrees Celsius) to…

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Q: 11.0 grams of ice at a temperature of 0.00 Co are melted by a heater into water at 0.00 Co. Which of…

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Q: When 22.2 grams of ice at - 20°C have absorbed 2500 calories of heat, what is the temperature of the…

A: Given: The mass of the ice is 22.2 g. The absorbed energy by the ice is 2500 cal. The specific heat…

Q: Suppose it's winter and the machine is powered with methanol. Methanol has a density of 0.80 g/cm3.…

A: Given data, Density of Methanol, d = 0.80 g/cm3 = 0.80×1000 kg/m3 = 800 kg/ m3  Amount of heat…