How much heat in kcal must be added to 0.30 kg of water at room temperature (20 degrees Celsius) to raise its tempature to 50 degrees Celsius?

Q: How much heat is necessary to change 10g of ice at -20°C into water at 20°C? The specific heat of…

A: Given: Weight of ice (mice) = 10 g. Initial temperature (Ti) = -20 ̊C. Final temperature (Tf) = 20…

Q: 4000J of heat is applied to a 1.5kg silver pendant initially at a temperature of 150∘C. Determine…

A: Heat supply to the substance which increase the temperature of substance,

Q: 2.61 At a temperature of 60°F, what pressure must be imposed in order for water to boil.

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Q: It is a hot summer day 50 degrees C. How much heat in calories is needed to freeze a puddle of water…

A: The heat energy is absorbed by the water molecules and begin to dissociate from one atom into…

Q: Show that 3000cal= 12,570J , the same quantity of thermal energy in different units.

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Q: How much energy is necessary to heat 2.5 kg of water from room temp to its boiling point in kcal?

A: Given, Mass of water,m=2.5 kg Specific heat of water,c=1 kcal/kg-°C Initial temperature,T1=25°C…

Q: A pound of body fat stores an amount of chemical energy equivalent to 3,500 Cal. When sleeping, the…

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Q: How much heat transfer is required to raise the temperature of a 0.75kg aluminum pot containing…

A: Given data: Mass of the aluminium pot is, mAl = 0.75 kg Mass of water contain in, aluminium pot is,…

Q: How much heat energy is required to raise 2 kg of copper by 5º C?

A: Given: Mass, m=2 kg ∆T=5°C Specific heat capacity of copper, c=390 Jkg-1K-1

Q: Why is the temperature of pasteurization at 60°C?

A: Continuous heat-transfer systems are often used in traditional pasteurisation procedures. These…

Q: Does a substance that heats up quickly have a high or a low specific heat capacity?

A: The amount of heat required to raise the temperature of unit mass of substances through one degree…

Q: A body is at 75 degrees and cools in the surroundings at 25 degrees. At what temperature will its…

A: Given data and information :- Temperature of body T (first case)= 75°Temperature of surroundings T0…

Q: Suppose a run containing 34.5 grams of water is cooled from 20 degrees C to 5 degrees C. How much…

A: Given, Mass of the water, m = 34.5 g Initial temperature Ti=20∘C Final temperature Tf=5∘C Heat…

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: Calculate the heat change (q) in J when 4.228 grams of water is cooled from 4.797 ºC to -2.699 ºC.

A: Given data *The mass of the water is m = 4.228 g *The initial temperature is Ti = 4.797 0C = (273.15…

Q: The two metallic strips that constitute some thermostats must differ in: * thickness length…

A: Thermostat are made with two different metallic strips that have different property of  linear…

Q: Why is it that a tub of water placed in a farmer's canning cellar helps prevent canned food from…

A: Canning cellar is a place build by the farmers to store the foods in cold winters.The water has…

Q: Calculate the number of calories given off by 300 g of water cooling from 25 deg C to 10 deg C

A: Given data: Mass (m) = 300 g Initial temperature (T0) = 25°C Final temperature (T) = 10°C Required:…

Q: How much heat is required to change 1.2kg of lead from 15°c to 65°c temperature?

A: The given data are as follows: Mass of the lead, m = 1.2 kg or m = 1200 g Initial temperature, Ti =…

Q: When I sit by a campfire, how does its hot air heat me?

A: When you sit by a campfire, most of the heat you are receiving from the fires does not come from hot…

Q: How much heat is required to convert 50 g of ice at – 10 °C to steam at 200 °C?

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Q: The glowing filament in a lamp is radiating energy at a rate of 60 W. At the filament's temperature…

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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: Find the heat needed to raise the temperature of the air in a room 4.0 m x 5.0 m x 3.0 m from 5 oC…

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Q: How much heat in kcal must be added to 0.53 kg of water at room temperature (20 degrees Celsius) to…

A: Given:- the mass of the  water m = 0.53 kg  The initial temperature of the water is T1 = 20o C  The…

Q: How much joules is needed to raise the temp of 8.0 L of water from 0 degrees C to 83 degrees C?

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Q: the mass of copper calorimeter is 0.28kg and it contains 0.4kg of water at 17degrees celsius. taking…

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Q: 1 . mol of xenon expands at constant pressure; the change of gas temperature is 1 K. Find received…

A: Heat given  Q = n Cp ΔT

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: Ethyl alcohol has about one-half the specific heat capacity of water. If equal masses of each at the…

A: We heat , Heat Q = mc(dT) change in temperature dT = Q/mc Given mass (m) is same for both liquids…

Q: To what temperature will 7900 JJ of heat raise 2.6 kgkg of water that is initially at 10.0 C?

A: Scenario - Water at a certain temperature is provided with heat energy to increase its temperature.…

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 heat must be added to 150 grams of ice at 0°C to form water at 0°C?

A: mass , m = 150 gm To find = heat to be added

Q: ich heat is required to bring 1 liter (1 kg) of water to a boil from 20 degrees Celsius? How ich…

A: Given  Volume = 1L =10-3 m3  density of water = 103 kg/m3  Mass m = volume × density = 10-3 ×103 =1…

Q: How many joules are given off when 120 g of water are cooled from 25ºC to - 25ºC. SHC of ice is…

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Q: To sterilize a 125 g aluminum water bottle, we must raise its temperature from 22ºC to 98ºC. How…

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Q: How much heat is required to raise 7.9 kg of gold 55°F? (include units with answer)

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Q: What amount of heat (in kJ) is required to convert 13.9 g of an unknown solid (MM = 67.44 g/mol) at…

A: Given values:- Mass of an unknown solid,(m)=67.44 g/mol ----(1) Initial temperature,(T1)=-15.4 0C…

Q: How many kilograms of -25°C ice per day will melt and evaporate to steam after adding a total of…

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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 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 kcal must be added to 0.66 kg of water at room temperature (20 degrees Celsius) to…

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