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

Q: The thermal energy of 0.900 mol of a substance is increased by 0.900 J.

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Q: What thickness of (a) concrete, (b) brick wood have the same insulating ability as 10 cm of glass…

A: Since the rate of heat transfer is proportional to the temperature difference and the area and…

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

A: A pound of body fat is equivalent to 3500 calorie.  time required =total energy/ rate of energy loss

Q: When 345 g of water at 35.0 °C and 295 g of water at 63.0 °C are added together in a calorimeter,…

A: Mass 1 of water: m1 = 345 g Initial temperature of water 1: T1 = 35.0o C Mass 2 of water: m2 = 295 g…

Q: How much heat is necessary to change 585 g of Ice at -7 degrees Celsius to water at 20 degrees…

A: mass = 585 g temperature of ice = -7 C final temperature = 20 C specific heat of ice = 2.108 J/g - C…

Q: The heat of vaporization of water is 2257 Joules/gram or 540 calories/gram. What energy in Joules is…

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Q: How much heat that an 80 kg bathwater needs to lose (in kcal) to reduce its temperature from 42o C…

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Q: How much heat in kcal must be added to 0.30 kg of water at room temperature (20 degrees Celsius) to…

A: The mass of water is, The change in the temperature of water is,

Q: After the 1kg block of ice melts, the amount of heat required to raise its temperature to 10 oC is

A: The heat required to raise temperature to 10 degree Celsius is the sum of heat gained for meting ice…

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: The equation for the power emitted by the human body is P=5.67 X 10^-8 AT^4 . If the area of the…

A: Area of human body , A = 3.5 m2  Temperature , T = 25 ° C = 298.15 K To find = power emitted

Q: The specific heat of germanium is 321 J/kgC. How much energy, in kilojoules, is required to raise…

A: Let s denotes the specific heat of germanium, m denotes the mass of germanium, ΔT denotes the…

Q: A quantity of steam (390 g) at 113 degrees Celsius is condensed, and the resulting water is frozen…

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Q: The specific latent heat of fusion for gold is 1.10x10^6 J/kg: How much energy is required to melt…

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Q: How much heat must a gram of water at 15 celcius lose to turn into ice at -10 celcius? A) 105 Cal B)…

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Q: What is the energy needed to melt 0.68 kg of gold? (Use: Le of gold = 63 kJ/kg)

A: Given data: The mass of the gold is m=0.68 kg The latent heat of fusion of gold is Lf=64 kJ/kg

Q: How many kilocalories of heat would be needed to melt 20kg of ice at -30 degrees Celsius and…

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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 in joules is needed to raise the temperature of 5.0 L of water from 0 degrees Celsius…

A: Given data:  Volume of water = 5.0 L = 5.0 × 10-3 m3 Initial temperature (T0) = 0 °C Final…

Q: A 4 g sample of aluminum and a 4 g sample of copper are both at a temperature of 25°C. Aluminum has…

A: This problem is based on the Joules's law.   Write the expression of heat. Q=mcTf-Ti

Q: The heat of vaporization of ethyl alcohol is 8.5 x 10^5 J/kg. If 2 kg of it were allowed to vaporize…

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Q: How much heat energy is required to vaporize 1 gram of of ice at 1 Celsius?

A: In the given question, We have to determine the heat energy to vaporize 1 gram of of ice at 1…

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: How much heat is required to melt a 3-kg iron? A.272,000 J B.300,000 J C.816,300 J

A: Given: Mass of iron, m = 3 kg.   To Find: The amount of heat required for melting.

Q: What is the specific heat of a 5.1 -kg substance if 135j of heat is needed to raise the temperature…

A: Mass of the substance is m = 5.1 kg Heat required, Q = 135 J Difference in temperature is…

Q: The average body temperature of a house cat is ?101.5 °F. What is this temperature in Celsius C = 38…

A: Given Average temperature of a cat is TF=101.5 oF Find the temperature in Celsius.

Q: In 15 minutes please!!!

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Q: How much heat in kcal must be added to 0.39 kg of water at room temperature (20 degrees Celsius) to…

A: Given data The mass of the water is given as m = 0.39 kg. The initial temperature of the water is…

Q: What is the latent heat of fusion of a substance if it takes 4.5 x 10 4 J to melt 750 grams?

A: Given data: Energy energy (E) =4.5 × 104 J Mass (m) = 750 g = 0.750 kg Required: Latent heat of…

Q: The number of grams of ice that can be melted by 1.5 g of 100oC steam is ______.

A: Given data The mass of steam is given as ms = 1.5 g. The temperature of the steam is given as Ts =…

Q: A person consumes about 2300 Cal a day. 1 Cal = 4186 J and 1 kWh= 860 Cal.If a power company charges…

A: person consumes = 2300 cal in one day 1 kwh = 860 cal  cost of 1 kwh energy = 12 ¢ means cost of 860…

Q: 50 g of copper is heated to increase its temperature by 100C. If the same amount of heat is applied…

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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: How much heat (in J) is needed to raise the temperature of 7 kg of iron from 22 degrees Celsius to…

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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: A balloon has 4 moles of gas in it at a pressure of 5.6 atm and a volume of 12 L, what is…

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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: 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: What is the energy needed to melt 0.55 kg of gold? (Use: Le of gold-63 kJ/kg) Select one: a. 34.65 J…

A: We are given latent heat of fusion of gold , Lf = 63 kJ/ kg This means to melt 1 Kg of gold , 63 kJ…

Q: 50 g of ice at 10°C is mixed with 70 g of water at 90°C, what will be the final temperature of a…

A: Let Tf be the mixture’s final temperature.

Q: the Maximum Warm forming temperature in (C) Celsius for a metal having an absolute Melting temp. of…

A: As per bartleby guideline for more than one question asked only first is to be answered please…

Q: what is the energy needed to melt 0.68km of gold?

A: 0.68km of gold. By using the formula and the fact that 1 gram of gold can be drawn into 66…

Q: In an experiment to measure the specific heat capacity of Aluminum three values, 0.25 Cal/gm.Co,…

A: The mean (X) of a data set is defined as the sum of all the observations divided by the number of…

Q: A person eats an 408.85 J snack before working out. If a person uses all of their eaten energy to…

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Q: How much heat is needed to melt 17 kg of silver that is initially at 18∘C?

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