How much heat must be added to 15 g of water at an initial temperature of 66°C to do the following? (a) heat it to the boiling point  cal (b) to completely convert the 100°C water to steam  cal

Q: How much heat must be removed by a refrigerator from 2 lbs of water at 70 degrees Fahrenheit to…

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Q: If 8000 cal of heat is needed to change the temperature of a certain amount of ice at -250C to steam…

A: Given If 8000 cal of heat is needed to change the temperature of a certain amount of ice at -250C to…

Q: Water with a heat capacity of 4.18 kJ/kg °C and ethyl alcohol has a heat capacity of 2.4 kJ/kg °C.…

A: Specific heat: The heat required to increase the unit temperature of unit mass without phase change…

Q: A 300g piece of iron at 200 deg Celcius is placed in a 100g aluminum cup containing 220g of liquid…

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Q: When a driver brakes an automobile, the friction between the brake drums and the brake shoes…

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Q: How much heat energy in calorie is necessary to convert 100.0 g of ice at 0°C to water vapor (steam)…

A: Solution-

Q: . A bullet of mass 10 g moving with speed of 210 m/s in stopped suddenly. If all its kinetic energy…

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Q: A 0.0400-kg ice cube at -30.0°C is placed in 0.500 kg of 35.0°C water in a very well-insulated…

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Q: A can of cola from the united states contains 180 Cal and a can containing the same amount of cola…

A: A can of cola from United States contains 180 cal and a can contains same amount of cola from…

Q: A calorimeter made of copper (c=0.0923 cal/g-C°) of mass 300 g contains 450 grams of water. The…

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Q: The temperature of 500 g of water is to be raised from 10 °C to 40 °C.  The energy needed to do this…

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Q: A bullet of mass 10 g moving with speed of 210 m/s in stopped suddenly. If all its kinetic energy is…

A: Given data :- m = 10 g = 0.01 kg v = 210 m/s

Q: A. Mechanical equivalenta of heat ן"ד"M'u) B. Water equivalent C. Rate of evaporation measurement of…

A: We are allowed to give the explanation of first three subparts of a question only which is given…

Q: To speed the process of ice melting, you can smash the ice up into smaller pieces, via a tool such…

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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: How much heat is needed to heat 10 kg of water from 70 degrees Celsius to water vapor at 100 degrees…

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Q: a 50g copper calorimeter contains 250g of water at 20oC. how much steam must be condensed into the…

A: Here,

Q: A 10 g of ice at -10 degree Celsius are mixed in with 25 g of water at 30 degrees Celsius. What…

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Q: A 300g piece of iron at 200 deg Celcius is placed in a 100g aluminum cup containing 220g of liquid…

A: Given Data, Mass of the iron (mi)=300g Temperature of the iron=200 deg Celsius Final temperature=49…

Q: (2) A 3.05 kg sample of water at 9.5°C is in a calorimeter. You drop a piece of iron with a mass of…

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Q: 3. A 7.0-kg block of aluminum is heated from 30°C to 90°C at atmospheric pressure. Find (a) the work…

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Q: How much heat do you need to remove from 2 g of steam at 100oC to convert it to water at…

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Q: When a driver brakes an automobile, the friction between the brake drums and the brake shoes…

A: From conservation of work energy,

Q: Heat is transmitted in liquids by convection and in solids by radiation. Select one: True / False

A: Heat is transmitted in liquids by convection is true.               Convection  usually takes place…

Q: 6. Air in an internal-combustion engine has 440°F, 150 psia, with a volume of 3 ft. Combustion heats…

A: "As per the guidelines i solved first three subpart". 6. convert the initial temperature from…

Q: The graph below shows the change of phase of ice (-20 °C) to steam when heat is added. Temperature…

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Q: 237 g of water, initially at 22.0 degrees Celsius, is placed in a freezer. The water freezes to…

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Q: A solid magnesium sample of 0.1628 g (M.W. = 24.305 g/mol) is burned in a constant- volume…

A: Given data: The mass of sample is m=0.1628 g. Initial temperature of water is T1=25°C. Final…

Q: The graph below shows the change of phase of ice (-20 °C) to steam when heat is added. Temperature…

A: In the given Temperature-Heat curve In the phase where graph remains horizontal, it's temperature…

Q: The same heat transfer into identical masses of different substances produces different temperature…

A: Given: Q=1.0 Kcal Q=1.0*4184 JQ=4184 JT1=20.0°Cm=1.0 kg

Q: A 25.95 g sample of methanol at 35.60 °C is added to a 38.65 g sample of ethanol at 24.70 °C in a…

A: SOlution:

Q: 5. A steam engine intakes 100 g of steam at 100°C per minute and cools it down to 20°C. Calculate…

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Q: the specific heat of water is 1.0 cal/gram˚C. 100-gram hot water at 100˚C is mixed with 300-gram…

A: The heat gained by water sample at 20 degree celsius = heat lost by water at 100 degree celsius M C…

Q: How much heat is required to melt 20 g of ice initially at 0 degree Celsius and convert it into…

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Q: A 0.075-kg ice cube at -30.0°C is placed in 0.375 kg of 35.0°C water in a very well-insulated…

A: mass of ice cube = 0.075 kg initial temperature of ice cube = -30oC mass of water = 0.375 kg initial…

Q: When a driver brakes an automobile, the friction between the brake drums and the brake shoes…

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Q: How much heat to you need to add to 4 g of ice at 0oC to convert it to water at 0oC? Assume…

A: We know that Q = mL here L latent heat

Q: 500ml of 60oC water at is added to a beaker. Water’s specific heat is 4.186 J/g °C.  You have 40ml…

A: Given: The amount of water is mw=500 ml, The amount of the unknown substance is mun=40 ml, The…

Q: What is the heat in calories required to raise the temperature of 0.05 kg of water from 0 degrees C…

A: Given data:  Mass (m) = 0.05 kg Initial temperature (Ti) = 0°C Final temperature (Tf) = 100°C…

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 200g of an unknown metal at 15 °C is placed in water. The unknown metal gains 500 cal and its…

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Q: 2. A glass of mass 100g, contains 150g of water at 30°C. When 70g of ice at 0°C is added to the…

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Q: The graph below shows the change of phase of ice (-20 °C) to steam when heat is added. Temperature…

A: Initial temperature = - 20o C let the mass of ice = m

Q: A 0.0450-kg ice cube at −30.0°C is placed in 0.300 kg of 35.0°C water in a very well-insulated…

A: The heat loss by water, The heat gain by the ice cube, The heat lost by the water is equal to the…

Q: 14500 kg tractor trailer travels up and down a 75-meter hill on its way to pick up a load of lumber…

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Q: How much heat in kcal must be added to 0.66 kg of water at room temperature (20 degrees Celsius) to…

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Q: What is the final temperature of the mixer of 50 g of steam at 100°mixed and 170 g of ice at its…

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