Consider a mixture of 100 grams of water at 25∘C with 75 grams of water at 40∘C. Calculate the final temperature of the sample.

Q: How much water remains unfrozen after 50.2 kJ is transferred as heat from 260 g of liquid water…

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Q: Consider some copper beads that are initially at T, = 200 °C, with each bead having a mass of m,…

A: Using conservation of energy we can say the heat lost by N numbers of coins has to be the same as…

Q: The newly constructed bridge in your town is a steel arch bridge 600 m in length. How much does the…

A: Write the given values with suitable variables. L=600 mTi=30 °CTf=50 °C Here, L denotes the original…

Q: How can I calculate the approximate amount of heat necessary to raise the temperature of 50 grams of…

A: The heat required can be obtained by Q=mc∆T

Q: Two 50g ice cubes are dropped into 200g of water in a thermally insulated container. The water is…

A: total mass of ice = 50g + 50 g = 100 g mass of water = 200 g initial temperature of water = 25oC…

Q: What is the percent increase in the energy radiated by a person with a average body temperature of…

A: Given : Normal temperature of person, T1 = 37oC = 273 + 37 = 310 K Temperature rises to, T2 = 40oC =…

Q: What mass of steam at 100°C must be added to 1.10 kg of ice at 0° C to yield liquid water at 15 ° C?…

A: Given,mass of ice, mi = 1.10 kgtemperature of ice, Ti = 0 °Ctemperature of water, Tw = 15…

Q: How much heat is absorbed by an electric refrigerator in changing 2 kg of water at 150C to ice at…

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Q: What mass of steam at 100 C must be mixed with 150 gof ice at its melting point, in a thermally…

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Q: If 20 grams of hot water at 80⁰C is poured into a cavity in a very large block of ice at 0⁰C, what…

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Q: How many grams of ice at 0∘C will be melted in bringing down a 73 kg patient's fever from 40∘C to…

A: Given,

Q: Typical temperatures in the interior of the Earth and Sun are about 4000°C and 15 x 106°C,…

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Q: How much energy is required to convert 20 kg of ice at -5 ° C into water vapor at 120 ° C?

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Q: How much heat is needed to completely vaporize 20 grams of ice, initially at 5°F?

A: Convert Fahrenheit to Celsius degree.

Q: If 3.90×105 J of energy is supplied to a container of liquid oxygen at -183°C, how much oxygen can…

A: Given:-  The energy supplied to the liquid oxygen is Q =3.90 x105 J The container contains liquid…

Q: An iron steam pipe is 200 ft long at 00What is the increase in length of the bar when heated to…

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Q: The latent heat of fusion for ice is 335 000 J/kg. If 300 000 J of energy is added to 1 kg of ice at…

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Q: How much mass (in grams) of aluminum initially at 150 °C must be added to 30og of water initially at…

A: Given The initial temperature of the aluminum is Ti(Al)=150°C. The mass of water is m=300 g. The…

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: What mass of water at 25.0°C must be allowed to come to thermal equilibrium with a 1.85-kg cube of…

A: From heat transfer equation,

Q: You cool a 100-g slug of red-hot iron (temperature 745 oC) by dropping it into an insulated cup of…

A: Given, Mass of slug (mslug)=100 g The temperature of slug Tslug= 745 degrees Mass of water (mw)=75 g…

Q: Consider a block of ice, with a mass of 2.00 kg and an initial temperature of -8.00°C. How much heat…

A: Specific heat capacity of a substance is the quantity of heat needed to raise the temperature per…

Q: A copper wire 15 m long is cooled from 40°C to -9°C. How much change in length does it experience?

A:

Q: A 32.5-g iron rod, initially at 22.7 oC, is submerged into an unknown mass of water at 63.2 oC, in…

A: Mass of iron rod = 32.5 Initial temp of iron rod = 22.7°C Initial temperature of water = 63.2°C…

Q: What mass of water at 30.0°C must be allowed to come to thermal equilibrium with a 1.80-kg cube of…

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Q: The specific heat of iron is 412J/Kg/K. How much energy in Joules is need to heat up a 0.2 kg of…

A: The energy required to raise the temperature of a substance of mass 'm' is given by the following…

Q: A body is removed from a confined space where the temperature is 70°C and is taken outside, where…

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Q: How much energy does a freezer have to remove from 1.5-kg of water at 20^0C to turn it into ice at…

A: The conversion of water into ice takes place in three steps as below, Water at 20º C to water at 0º…

Q: How much mass (in grams) of aluminum initially at 150 °C must be added to 400 g of water initially…

A: The mass of the water,

Q: A metallic plate, 15 cm by 50 cm in size, is heated from 20⁰C to 220⁰C. If the plate is made of…

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Q: A 2 kg block is made of a metal that has higher specific heat than the metal out of which a 1 kg…

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Q: A hot iron horseshoe (mass-0.4 kg), just forged, is dropped into 1.3 liter of water in a 0.3 kg iron…

A: Given,Mass of the horseshoe, mh = 0.40 kgmass of the water, mw = 1.3 kgmass of the iron pot, mp =…

Q: If you ask for an iced coffee, the barista will add ice cubes to hot coffee to cool it down. To cool…

A: Minimum mass of ice cube required to bring the coffee to zero degree implies that the ice melts…

Q: How much mass (in grams) of aluminum initially at 150 °C must be added to 300 g of water initially…

A: Given: initial temperature of Al, T1 = 150 degree C  final temperature of mixture, T = 59 degree C…

Q: The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these…

A: From Kelvin to Celcius:

Q: C is dropped into a bucket of water at 20 C. If the mass of water in the bucket is 5kg, what is the…

A: The mass of the iron horseshoe is m1 = 1.5 kg and the temperature T1 = 800 0C  The mass of the water…

Q: What mass of water at 30.0°C must be allowed to come to thermal equilibrium with a 1.80-kg cube of…

A:

Q: Water whose temperature is at 1008C is left to cool in a room where the temperature is 608C. After 3…

A: Given: The final temperature is T=908 K. The function of time is T=601+40ekt. The time is t= 3min.…

Q: The constant-pressure heat capacity of a sample of a perfect gas was found to vary with temperature…

A: The constant pressure heat capacity of a sample is given as Cp (J/K)=20.17+0.3665 T Then, Cv…

Q: If a person has a dangerously high fever, submerging her in ice water is a bad idea, but an ice pack…

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Q: Is the unit temperature difference A°C a larger interval than A°F? Is 10°C higher than 10°F?

A: Say we have temperatures T1 and T2 which are given in Celsius. We know that to convert a temperature…

Q: What mass of water at 28.0°C must be allowed to come to thermal equilibrium with a 1.75-kg cube of…

A: Given Water Temperature 28oC Mass of the aluminium cube = 1.75 kgs To find out  Mass of water to…

Q: What mass of water at 25.0° C must be allowed to come to thermal equilibrium with a 1.85 -kg cube of…

A:

Q: A steel measuring tape used by a civil engineer is 50metres long and calibrated at 200C. The tape…

A: Force brings about motion and changes in it. The net force and effect of all forces become clear by…

Q: The outer wall of a building is constructed from concrete blocks. If the wall is 5m long at 20 deg…

A: The outer wall of a building is constructed from concrete blocks. If the wall is 5m long at 20 deg…

Q: What is the change in length of a 3.4-cm-long column of mercury if its temperature changes from 35…

A: Data known,

Q: What mass of steam at 100◦C must be mixed with 150 g of ice at −60.0◦C, in a thermally insulated…

A: mass of ice (m) = 150 g Initial temperature of ice = -60oC temperature of steam = 100oC final…

Q: What mass of water at 20.0°C must be allowed to come to thermal equilibrium with a 1.90-kg cube of…

A: The amount of heat energy needed to change the temperature of water can be expressed as Qw=mwcwΔT