If 200ml of tea at 90C is poured into a 150g glass cup initially at 20C, what will be the common final temperature of tea and the cup when equilibrium reached, assuming no heat flows to the surrounding.    A. 75.44C B. 80.84C C. 88.89C D. 77.89C

Q: 3. A metal is heated up to a temperature of 450°C. It is then exposed to a temperature of 302 K.…

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Q: Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is…

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Q: A thermos contains 120 cm3 of coffee at 85° C. To cool the coffee, you drop two 13-g ice cubes into…

A: Given data The volume of the thermos is V = 120 cm3  The initial temperature of the coffee is Ti_c =…

Q: a glass blower cools a 45.6 g glass (Cglass = 0.8372 J/ g C) object that is initially at 89.0 C, and…

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Q: (II) A cube of ice is taken from the freezer at -8.5°C and placed in an 85-g aluminum calorimeter…

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Q: (3) What is the final equilibrium temperature? A quantity of ice (0.250 kg at -10 °C) is placed in…

A: The relation for the heat absorbed is q=-micecice∆T+mwatercwater∆T…

Q: 9. A 60.0-gram lead bullet hits a steel plate, both initially at 19 °C. The bullet melts and…

A: Calculate the heat energy of the bullet. Q=mc∆T+mL=600.129327-19+6023=3763.92 J

Q: A 3.00-g copper coin at 25.0°C drops 77.0 m to the ground. (a) Assuming 61.2% of the change in…

A: Given: The mass of the coin is 3.00 g. The initial temperature of the coin is 25 °C. The height of…

Q: 1,280 kg car going 29 m/s is brought to a stop using its brakes. Let's assume that a total of…

A: GivenMass of car (m) =1280 kgVelocity of car (v)=29  m/sMass of iron (mI)=28 kg

Q: One way to cool a cup of coffee would be to plunge an ice-cold piece of aluminum into it. Suppose a…

A: The heat required for a material to change its temperature is given by Q = mc∆T, where m = the mass…

Q: 6 g of dry ice (solid CO2) is placed in a 8000 cm3container, then all the air is quickly pumped out…

A: Convert the unit of dry ice from grams to moles.

Q: An automobile with mass 2000 kg is traveling at 20 m/sec. How much heat is developed in the brakes…

A: Given, mass of automobile m= 2000kg , speed v = 20m/s

Q: A 3.50-g copper coin at 17.5°C drops 40.0 m to the ground. (a) Assuming 55.0% of the change in…

A: a) The expression to determine the energy required to raise the temperature of the coin is,…

Q: A 9.0 g ice cube at -10°C is in a rigid, sealed container from which all the air has been evacuated.…

A: In the question 9 gram of ice cube is at -10°C  They have asked that how much heat is required to…

Q: If the air temperature is the same as the temperature of your skin (about 30° C), your body cannot…

A: Solution:- Energy Q= 505 W= 505 joule/sec =1818000 joule/hr Q'=76% of Q= 1818000×0.76=1381680 J/hr…

Q: On a cold winter day, you buy a cup of coffee from a seller on the street. You put your change, 9,00…

A: Write the given values, and the specific heat of the copper and silver as follows. mc=9.00…

Q: A thermos contains 172 g of coffee at 85 °C . To cool the coffee , you drop a 72.2 g ice cube into…

A: When the ice cube is put into the coffee , the ice cube will absorb heat energy from the coffee to…

Q: A large power plant heats 1527 kg of water per second to high-temperature steam to run its…

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Q: Cooling Turkey A roasted turkey is taken from an oven when its temperature has reached 185°F and is…

A: Initial temperature of turkey is Ti = 185 F Room temperature is Tr = 75 F Temperature after half an…

Q: 1. Calculate how much energy is required to change 2.8 kg of ice at -20 °C into liquid water at 37…

A: To convert ice from -20°C to ice at 0°C , heat required  Q1=msice∆T     =2.8×2100×20     =117600 J…

Q: •6) • A body skin at 38°C has a mass of 60g. When it is immersed in a current of steam at 100°C,…

A: Given, Mass of body skin m =  360 g temprature of body skin is T 1= 38∘c After immersed temprature…

Q: A bullet made of silver (specific heat 234 J/kg deg C) traveling at 370 m/s hits a wooden post and…

A: Data provided: Specific heat (c) = 234 J/kg.°C Speed (v) = 370 m/s Heat trapped = 38% of Kinetic…

Q: A house walls that are 11 cm thick and have an average thermal conductivity two times that of cork.…

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Q: 1.The heat of evaporation of water at atmospheric pressure is Lv 2260 kJ/kg. a. How much of this…

A: a. The formula for the work done is:

Q: Alligators and other reptiles don’t use enough metabolic energy to keep their body temperatures…

A: The energy required to raise the temperature of the alligator can be obtained as

Q: 2)  Core body temperature can rise from 6 °F to 107 °F during extreme exercise, such as marathon…

A: As we know that the core body temperature cannot be 6 degrees, so taking it as 98.6 degrees

Q: A 6.70-g lead bullet traveling at 510 m/s is stopped by a large tree. If half the kinetic energy of…

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Q: A 50 g lead ball is propelled straight from a cannon at a speed of 40 m/sand it is stopped in an…

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Q: 4. If 450g of ice is added to 500g of water at 120C. (a) What is the final temperature of the…

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Q: A house walls that are 24 cm thick and have an average thermal conductivity two times that of cork.…

A: Given data: The thickness of wall is x=24 cm. The surface area is A=950000 cm2. The inside…

Q: (10 blanks) If the gravitational potential energy of the water is equal to the increase in the…

A: Given data, Height of water where it is dropped = 50m also given that, gravitational potential…

Q: A 400-g block of copper at a temperature of 75°C is dropped into 550 g of water at 30°C. The water…

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Q: (1a). Figure shows a copper rod AB being heated at one end. Explain how the heat transfers from A to…

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Q: A gas burner transfers 9.20 × 105 J into a block of ice with a mass of 2.29 kg and an initial…

A: Given data: The heat transfer to the block is E=9.20x105 J. The mass of ice block is m=2.29 kg. The…

Q: Extra: Suppose you pour the 0.25 kg of 100°C water into 0.50-kg of ice water with a temperature of 0…

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Q: (1a). Figure shows a copper rod AB being heated at one end. Explain how the heat transfers from A to…

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Q: Ice cubes having a temperature of -15.0°C and mass 0.075 kgm are dropped in a glass of water at…

A: Let an amount m of water freezes.

Q: Determine the amount of energy required (in MJ) to convert 35 g of ice, initially at a temperature…

A: Given data: The mass of the ice is m=35 g. The initial temperature of the ice is Ti=-15oC. The…

Q: 6. A steel tank initially contains acetylene gas (C:H2) at 450 kPag and 21°C. After 1.25 kg of the…

A: GIVEN : Initial pressure = P1 = 450 kPa Initial Temperature = T1 = 21o C Amount of gas used = W2 =…

Q: Two students make 150-gallons of apple cider when the temperature is 6oC. The apple cider is…

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Q: A certain amount of 50 g ice is dipped into 200 g of water in a container. thermally insulated. If…

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Q: When you are sick your body temperature may be 39.0oC, compared to normal body temperature given by…

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Q: A(n) 65-g ice cube at 0°C is placed in 680 g of water at 28°C. What is the final temperature of the…

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Calorimetry

Measuring the heat transferred during chemical reactions or other physical processes is known as calorimetry. It comes under the branch of thermochemistry.