It takes 3.89x10* BTU of energy to heat a typical house, with an area of 2370 square feet, for a year. How many kilojoules of energy does this represent? kJ
Q: What amount of energy is required to heat 71.1g of marble from 21 degrees celcius to 151 degrees…
A: Recall the following expression to calculate amount of required energyQ…
Q: What is the work done by a system when it absorbs 47 J of heat and gain 12 J of energy?
A: Since you have posted multiple question, the answer for first question is given below. Kindly repost…
Q: Calculate the heat that must be supplied to a 500.0 g stainless steel vessel containing 450.0 g of…
A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…
Q: A strip of aluminum weighing 0.789 g is heated from 26.1 C to 45.8 C. What is the amount of heat…
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Q: How much heat is needed to raise the temperature of 100.0 g of water from 30.0°C to 100.0°C?
A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…
Q: 97. How much heat in kilojoules is required to heat 56 L of water from an initial temperature of 85…
A: Volume of water, V = 56 L or 56000 mL Density of water, ρ = 1 g/mL Determine the mass of water, m –…
Q: What is the minimum amount of energy required to heat 145 grams of water to the boiling point of…
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Q: A jeep performs 10,000 joules of work on its surroundings and releases 20,000 joules of heat. How…
A: The internal energy of a system is a state function (depends only on the initial and final state).…
Q: A piece of silver with a mass 418 g has a heat capacity of 99.1 J/°C. What is the specific heat of…
A: Given, heat capcity 'c' of silver = 90.1 J/oC , mass of silver = 418 g, specific heat = ?
Q: How many kJ of heat are needed to raise the temperature of 2 kg of water from 35 °C to 86 °C?
A: Heat capacity or thermal capacity is a physical property of matter, defined as the amount of heat to…
Q: A 7.0-gram metal sample absorbed 211 J of heat as it was heated from 28°C to 85°C. What is the…
A: Given details, m = 7.0 g Q = 211 J T1 = 28° C T2 = 85° C To calculate the specific heat of the metal…
Q: A 1533 kg car is traveling down the road at 99.0 km/h. While traveling at this rate of speed, what…
A: Here we use the formula of kinetic energy K.E = 1/2 m* V^2 Where m = mass of car = 1533 kg V =…
Q: An aluminum coin has a mass of 0.568g, a heat capacity of 0.903J/g°C and has gone from -12.5°C to…
A: First calculate the change in temperature ( ∆T ) : ∆T = T2 - T1 ∆T = ( 33.0°C ) - ( -12.5°C ) ∆T…
Q: How much heat is released when a 260.0 g plate of copper tools from 5.30 x 10^2K to 20.0C?
A: The specific heat capacity for a given chemical substance or a solution refers to the amount of the…
Q: True or False? If 25 grams of hot water are added to 35 grams of cold water, the heat lost by the…
A: The given statement is TRUE here
Q: The temperature of a 35.1 g sample of iron increases from 245 °C to 318 °C. If the specific heat of…
A: Given :- mass of iron = 35.1 g initial temperature = 24.5 °C final temperature = 31.8°C specific…
Q: 3. How much heat is released by a 76 g piece of copper as it cools from 450 °C to 28 °C?
A: Given data contains, Mass of copper is 76 g. Initial temperature is 450°C. Final temperature is…
Q: What is the volume of ethanol required to heat 200.0g of water by 10.0 celsius? The density of…
A: Note: Thank you for question. Since the Heat combustion of ethanol and Specific heat of water is not…
Q: How many joules of heat is needed to heat a 10g of aluminum foil from 55°C to 93°C if aluminum has a…
A: Specific heat is the amount of heat required for a unit mass of substance through a 1-degree…
Q: The specific heat of an unknown metal is calculated to be 3.74J/g*C. What is the mass of the sample…
A: Answer is explained below.
Q: A 50 gram piece of unknown material absorbs 1400 J of energy from a fire and increases in…
A: After absorbing the heat from any source the temperature of the element increases . This depends on…
Q: How much energy is needed to heat 180g of water from 28oC to 95oC? The specific heat of water is…
A: The amount of heat required to increases the temperature of the 1 g of the substance by 1 degree is…
Q: Calculate the energy (in kJ) required to heat 0.891 grams of water from -24.2 ℃ to 84.5 ℃.
A: Here we are given 0.891 g of water and temperature changes from -24.2 to 84.5 C.Specific heat for…
Q: On a mountaineering expedition, a climber heats water from 0°C to 50°C. Calculate the mass of water…
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Q: 1. How many KJ are used by a 154lb adult while sleeping for one hour? 2. In the specific heat…
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Q: What is the specific heat of 20.0 g piece of an unknown substance that changes from 25°C to 75°C…
A: Heat required to raise the temperature of the substance through 1°C is known as specific heat of the…
Q: how many joules of energy are released when 100.0 g of water cools from 98 degrees Celsius to 30° c…
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Q: If you have 0.113398Kg of iron. How much heat, in joules, must be added to raise their temperature…
A: Given,specific heat of iron is 0.452 J/g °CInitial temperature =16 °CFinal temperature = 125 °CMass…
Q: If a 45 g mass of water goes from 25.0 ∘ C to 75.0 ∘ C, how much heat energy in kilojoules (kJ) has…
A: The water is consists of specific heat which is absorbed in reaction. The boiling point of water is…
Q: 4. An unknown substance requires 567 J of heat to increase its temperature from 0 to 15 °C. The…
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Q: A 55.0g sample of metal z requires 675j of energy to heat it from 25.0 to 118.0 Celsius? Calculate…
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Q: Aluminum has a specific heat of 0.9J/(g °C). How much energy in kJ is needed to raise the…
A: Given, mass of Al block = 625 g Specific heat, c = 0.9 J/g°C
Q: Determine the specific heat of a material if an 18g sample absorbed 75 J as it was heated from 15°C…
A: Given, mass of material m =18 gamount of heat absorbed by material q = 75 Jand it was heated from…
Q: How many joules of heat is needed to heat a 108 grams of Aluminum foil from 13°C to 65°C if aluminum…
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Q: 1. How much heat (in joules) must be used to raise the temperature of 185 g of water from 15 °C to…
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Q: How much energy does it take to heat 2.0 kg of water from 25.0 degrees C to 75.0 degrees C?
A: Given that, Mass of water given m = 2.0 Kg = 2000 g Heat capacity of water c = 4.184 J/g°C Change…
Q: An iron can weighing 50 grams absorbs 256.0 J of heat and warms by 11.4°C. What is the specific heat…
A: The given data contains, mass =50 g which absorbs 256 J. Temperature change =11.4°C
Q: Exactly 385 J will raise the temperature of 76 g of a metal from 15.7oC to 50.9oC. What is the…
A: The given data: The mass of metal is 76 g The temperature of metal raises from 15.70C to 50.90C…
Q: How many joules of heat is needed to heat a 108 grams of Aluminum foil from 13°C to 65°C if aluminum…
A:
Q: A system releases 740J of heat while doing 123J of work. What is the value of AU (in J)?
A: A system releases 740J of heat while doing 123J of work. What is the value of∆U (in J)?
Q: To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to…
A: Given information: Mass = 4.9 g Heat required = 54.4 J Initial temperature = 25 oC Final temperature…
Q: Assume that the kinectic energy of a 1400-kg car moving at 115 km/h could be converted entirely into…
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Q: What is the specific heat of a material when 55.2 g of it change temperature by 35.8 degrees C when…
A: Use the formula as : Amount of heat absorbs (q) = Mass of substance (w) x specific heat capacity of…
Q: Calculate the amount of heat liberated (in kJ) from 366 g of mercury when it cools from 77.0°C to…
A: Given - Mass of the mercury =366 g Final temperature Tf= 120C Initial temperature Ti=770C By the…
Q: Aluminum and iron samples, each weighing 2 kg, absorb 11.5 kJ of heat. Which material would have the…
A: The amount of heat required to increase the 1oC temperature of 1 g metal is known as the specific…
Q: 1. How much heat must your body transfer to 500.0g of water to heat it from 25.0°C to body…
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Q: Anthracite coal, 1.0 g, produces 7.000 x 10° cal when burned. How many joules of energy does this…
A: We know that, calories of energy is related to Joules as, 1 cal = 4.184 J…
Q: A lead fishing weight has a mass of 57 g. The weight absorbs 146 cal of heat. If its initial…
A: The specific heat of a compound suggests the amount of heat needed for per unit mass of the compound…
Q: 10. It took 4.15 x 103 J of energy to raise the temperature of a piece of copper metal from 31°C to…
A: We have to calculate the mass of metal.
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- Some solar-heated homes use large beds of rocks to store heat. (a) How much heat is absorbed by 100.0 kg of rocks if their temperature increases by 12C? (Assume that c=0.82J/gC.) (b) Assume that the rock pile has total surface area 2 m2. At maximum intensity near the earth's surface, solar power is about 170 watts/m2. (1watt=1J/s.) How many minutes will it take for solar power to produce the 12C increase in part (a)?10 g of a piece of metal is taken by a student to find its specific heat capacity. Metal is tied with a string and suspended it aboveboiling water that is at 100 °C. Sufficient time is allowed for metal to reach the temperature of boiling water. Also, with agraduated cylinder, 10 ml of distilled water is transferred in a test tube and its temperature is measured as 25 °C. After 10minutes, metal which is over the boiling water is taken and put into water that is in the test tube. 5 minutes later, temperature ofwater in the test tube is measured as 32 °C. Calculate the specific heat capacity of metal. (Specific heat capacity of water is4.18 J/g. °C and density of water is 1 g/ml)Thermochemistry THE PRESSURE IN THE SUBSTANCE DRASTICALLY DECREASE FROM 354 TO 21 POUNDS PER SQUARE INCHES (PSI), THE HEAT ENERGY OF THE OPEN SYSTEM REDUCES 555BTU/LB, AND THE VOLUME INCREASES FROM 1 TO 10FT^3/LB. FIND THE FOLLOWING: (A) DETERMINE THE WORK PER LB. UNITS:BTU/LB (B) IS IT DONE ON THE SUBSTANCE OR DONE BY THE SUBSTANCE? (C) DETERMINE THE WORK IN HP (HORSE POWER) FOR 10LB PER MIN. (1HP = 42.4BTU/MIN). UNITS:HP
- An insulated and sealed bucket containing 400g of water at25°C was used to carry 70 g of a hot metal bar at 180°C. The final temp. of the mixture was read at 28°C. Compute for the specific heat capacity (s) of the metal.which version of the specific heat equation is both correct and is set up to solve for the final temp?The sun supplies about 1 kilowatt(s) of energy for each square meter of surface area (1 kW/m2kW/m2, where a watt = 1 J/sJ/s). Plants produce the equivalent of about 0.19 gg of sucrose (C12H22O11C12H22O11) per hour per square meter.
- For study flow in a heat exchanger at approximately atmoapheric pressure, what is the heat transferred when 12kg °F ethylbenzene is heated from 300 to 700°Co-phthalic acid, C8H6O4, is sometimes used as a calorimetric standard. Its heat ofcombustion is - 3.224 × 103 kJ/mol C8H6O4. From the following data determine theheat capacity of a bomb calorimeter assembly (i.e., of the bomb, water, stirrer,thermometer, wires, etc.)mass of o-phthalic acid burned: 1.078 ginitial calorimeter temperature 24.96 °Cfinal calorimeter temperature 30.76 °CHow logn would it take to convert 100 g Na(s) at 20oC to sodium vapor at 1000oC if heating rate at a pressure of 1 atm is 8 kj/min? Tmelt = 97.8oC Tboil - 883oC CNa(s) = 28.2 J/mol K CNa (l) = 30.8 J/mol K C Na(g) = 20.2 J/mol K Solve by adding all the qs and showing work please, need step by step, and solve on paper!
- calculate the heat gained by the water: Q=CmΔT heat lost by sample: ms* cs *(Ts-T) = mw *cw (T -Tcw) + mc *cc *(T-Tcw) solve for the specific heat of the unknown known unknown (ms) mass of unknown= 240.40g (Cs) specific heat of sample: ? (Ts) Temp initial of sample: assume 100°C (mc) mass of dry cup: 31.3g (mw) mass of water: 127.3g (cw) specific heat of water: 4186 J/kg °C (Tcw) initial temp of water: 12°C (Cc) specific heat of cup: use Aluminium 900 J/kg °C (T) final temp 23°C (I tried it and I'm not sure if I have a correct answer, so if you can please do it step by step to show me where I made mistakes)Galen, the great physician of antiquity, suggested scalingtemperature from a reference point defined by mixingequal masses of ice and boiling water in an insulated container. Imagine that this is done with the ice at 0.00°C and the water at 100.0°C. Assume that the heat capacity of the container is negligible, and that it takes 333.4 J of heat tomelt 1.000 g ice at 0.00°C to water at 0.00°C. Compute Galen’s reference temperature in degrees Celsius.Calculate the heat reaction in Mg given: Mass of Mg: 1.07786g Volume HCl: 50mL of 3M HCl Heat capacity of the solution: 4.184J/gx°C Trial 1 initial temperature: 26°C Trial 1 final temperature: 47°C Trial 2 Initial Temperature: 27°C Trial 2 final temperature: 47°C Note: please give detailed solutions. Thank you!