A 2 kg. block of copper is removed from a freezer where its temperature was maintained at -19 Co  . How much heat does the copper absorb as it is warmed to -3 Co ? (The specific heat capacity of copper is 390 j/kg co

Q: A 6.22-kg piece of copper that is heated absorbs 728 kJ of energy.  If the copper starts at 20.5° C,…

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Q: How much thermal energy (in J) is required to boil 2.25 kg of water at 100.0°C into steam at…

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Q: What is the change in the rate of the radiated heat by a body at the temperature T1 = 20ºC compared…

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Q: How much heat transfer is required to raise the temperature of 75 g of water from 14ºC to 28ºC?…

A: Write the given values of this problem. m=75 g or 0.075 kgIntial temperature(Ti)=14°CFinal…

Q: Q.1/If you have 100 gm of ice at Oc, how much energy you need to convert this ice to water vapor at…

A: Given: Mass of ice (m) = 100g            Latent heat of fusion (Lf) = 79.9 Cal/g            Latent…

Q: Your 300 mL cup of coffee is too hot to drink when served at 90 °C. What is the mass of an ice cube,…

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Q: how much heat would have to be added to 200 g of ice, initially at -10 oC to completely melt the…

A: Given data: The specific heat of ice is: CP =0.5 cal/g oC The mass of ice is: m= 200g The initial…

Q: How much heat is required to melt 30kg of ice at 0 °C to water at 10 °C? The latent heat of ice to…

A: Here, the ice is at the melting point. First ice will completely converted into water at the melting…

Q: .A 70Kg runner loses 0.5kg of water each hour through evaporation of perspiration in order to…

A: The problem is easy if use conservation of energy energy or we can say that calorimetry law that is…

Q: A.400.00 gram metal block absorbs 1.85 x 104 J of heat to increase its temperature from 20°C to…

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Q: Q.1/lf you have 100 gm of ice at Oc, how much energy you need to convert this ice to water vapor at…

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Q: 4 kg of ice at 0◦C is converted to steam at 100◦C. How much heat is needed? The heat of fusion…

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Q: In an electric freezer, 400.0 g of water at 23.0°C is cooled, frozen, and the ice is chilled to…

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Q: If the specific heat capacity of the ice is 0.5 cal/g Celsius, how much heat would have to be added…

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Q: A 2 kg piece of aluminum is heated from 20 ◦C to 130 ◦C. Calculate the amount of heat energy…

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Q: A 18-kg piece of aluminum (which has a specific heat of 900 J/kg.°C) is warmed so that its…

A: Specific heat capacity of a substance is defined as the heat required per unit mass to change the…

Q: What is the specific heat of a substance if 130 kJ of heat is needed to raise 4.6 kg of the…

A: Given data:  Heat energy (Q) = 130 kJ Mass (m) = 4.6 kg Initial temperature (Ti) = 18.0°C Final…

Q: How much thermal energy is needed to raise the temperature of 10.0 g of water 15.0 degrees C?

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Q: A 10 kg Leadbrick is dropped from the top of a 629 m tall television transmitting tower in North…

A: Mass of lead brick (m) = 10 kgHeight of the tower (h) = 629 metersPotential energy of the brick (PE)…

Q: A pot with 0.0001m3 of vegetable oil is being heated from 20 degrees Celsius to 100 degrees Celsius.…

A: Calculate the mass of te oil in the pot. Mass of the oil=Density×Volume                      =925…

Q: A 10-kg iron ball is dropped onto a pavement from a height of 100 m. If half of the heat generated…

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Q: How much heat must be removed from 100 g of water at 20°C to convert it to ice at -20°C? (Lf = 79.71…

A: Given data: The mass of water, m=100 g. The initial temperature of water, Ti=20 °C. The specific…

Q: An iron plate 2 cm thick has a cross-sectional area of 5000 cm2. One face is at 150oC, and the other…

A: we know that,Qt=KTA∆TLQ= heat transferedt= time = 1 skT= thermal conductivityA=cross sectional area=…

Q: A hot 1 kg chunk of copper is allowed to cool to 100°C. If the copper gave off 231 kJ of energy,…

A: It is given that,

Q: How much heat is required to melt 30 kg of ice at 0°C to water at 10°C? The latent heat of ice to…

A: Here the heat requirement shall comprise of two parts a) Heat required to raise temperature of water…

Q: How much heat is necessary to raise the temperature of 1000 g of ethanol from 20oC to 80oC? The…

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Q: One gram of water and 1 gram of soil (“land”) are at a temperature of 20°C (68°F). If 5 calories of…

A: The amount of heat transfer is given as, Here, m, c, Ti and Tf represent the mass, the specific…

Q: How much energy, in J, is required to raise the temperature of 1 kg of water from 37oC to 39.5oC?…

A: Given  Temperature initial, T1 = 37°C  Final temperature, T2 = 39.5°C  Specific heat of water, c =…

Q: A 652-g empty iron kettle is put on a stove. How much heat, in joules, must it absorb to raise its…

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Q: A 250.0 g china serving bowl is warmed 65 °C when it absorbs 3500 cal of heat from a serving of hot…

A: Given that  Mass of the bowl is m = 250 gm Amount of heat energy absorbed by the bowl is Q = 3500…

Q: How much thermal energy (in J) is required to boil 1.90 kg of water at 100.0°C into steam at…

A: Given data: Mass of the water, m=1.90 kg Temperature difference, ΔT=157oC-100oC = 57oC Latent heat…

Q: How much energy is required to change 2 kg of ice cube to steam. (Specific heat of water = 4200 J…

A: mass of ice cube = 2 kg specific heat of water = 4200 J kg-1C-1Latent heat of fusion = 334 kJ…

Q: A 4.0-kg aluminum block is originally at 10°C.  If 160 kJ of heat is added to the block, what is its…

A: (given)                      Mass (m) of aluminium block = 4 kg Initial temperature (Ti) of…

Q: How much heat must be removed from 456 g of water at 25.0°C to change it into ice at -10.0°C? The…

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Q: An automobile cooling system holds 18.9 L of water. How much heat does it absorb if its temperature…

A: Given Data Volume of the water is V=18.9 L=18.9×10-3 m3 Initial temperature is ti=20.8°C Final…

Q: ) Gold has a specific heat of 130 J/kg X, and wood has a specific heat of 1 300 J/kg-K. If a piece…

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Q: 11.0 grams of ice at a temperature of 0.00 Co are melted by a heater into water at 0.00 Co. Which of…

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Q: What is the specific heat of a 50-gram metal initially at 200°C which heated to 900°C with 2330 J of…

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Q: How much heat is required to melt 500.g of ice to water at 15.0°C?(latent heat of water=335 kJ/kg ,…

A: mass of ice = 500 g Final temperature = 15o C latent heat of fusion = 335000 Jkg Specific heat of…

Q: 1.) 100.0 ml of 4°C water is heated until it reaches 37 C. Assume that the density of liquid water…

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Q: 25.0 kJ of heat is added to 52.0 g of ice at -10.0°C. What is the temperature of the water (in °C…

A: Given Mass m = 52 g = 52 × 10-3 kg  Specific heat of ice = 2.09 J/kg o C = 2.09 × 103 J/kg o C…

Calorimetry

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