"Say someone has 500 grams of water at 20 degrees Celsius. If they want to cool it down to zero degrees and then freeze it, will it take more energy to cool it down or more energy to freeze it?" A: Cool it down  B: Freeze it C: Same energy for both D: Cannot be done

Q: It takes 5000 J of energy to raise the temperature of a 1.5 kg sample of an unknown material by…

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Q: Why does temperature remain constant from when t = 2 min to when t = 5 min? because the substance…

A: As it is a cooling curve therefore temperature decreases with time. The temperature is constant…

Q: # 1 You have been working in the laboratory to develop a new material called DrS45. In an…

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Q: During a marathon race David uses energy at a rate of 272 W. What volume of body fluid does he lose…

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Q: An insulated mug of coffee contains 413.45 cm3 of coffee at 78.98 °C. You drop 26.7 g of ice (0 °C)…

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Q: 15) Which one of the following quantities is the smallest unit of heat energy? D) Btu A) joule B)…

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Q: A 50 g ice cube at 00C is heated until 45 g has become water at 1000C and 5 g has become steam at…

A: The expression for the required amount of heat,

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 perfectly insulated calorimeter has the following parts placed inside of it: 0.250 kg of water at…

A: The given values are,

Q: Q1: A) A copper tape has a length 30 m in a winter day when temperature is (-10 ° C) .how much…

A: Length , L = 30 m T1 = -10 °C = 263 K T2 = 40 °C = 313 K Thermal expansion , α = 17 x 10-6 K-1

Q: A Styrofoam cup holds 0.302 kg of water at 22.5°C. Find the final equilibrium temperature (in…

A: Mass of the water, The initial temperature of the water,

Q: 3. Answer the following questions as either TRUE or FALSE a. the Sun directly heat the air in our…

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Q: 00 You can touch the aluminum pan after it has been taken from the hot oven, but you'll burn your…

A: Aluminium has a low heat capacity so transferring a small amount of energy lowers the temperature of…

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: 6. A chunk of ice (T = -20 degree C) is added to a thermally insulated container of cold water (T =…

A: This can be viewed as let us first give heat H to ice so that it comes at 0°C .now the heat H, which…

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: 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: Question 3 On a table there are two objects: One made of aluminum and one made of wood. You touch…

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Q: Q 11:- If the distance between each atom and another in a molecule of ammonia gas (NH3) is constant,…

A: Distance between each atom and another molecule of NH3 is constant

Q: Liquid water turns out to have a higher density at 4C degrees than at any other temperature. What…

A: Thermal expansion coefficient describe the relation between the size of an object and change in the…

Q: An 8 51 kg block of ice at 0 "C is sliding on a rough horizontal icehouse floor (also at 0 "C) at…

A: Given: The mass of the ice is 8.51 kg. The initial speed of the ice is 15.3 m/s. The half of heat…

Q: 200 J of heat is added to two gases, each in a sealed container. Gas 1 is in a rigid container that…

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Q: (k-0.84 J/sm'C) in one minute if the temperature difference between two sides of the window is 10.…

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Q: 4.) A material of mass m is heated using 5.00 calories of heat and its temperature rises by one…

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Q: Materials A and B have equal densities, but A has a larger specific heat than B. You have 100 g…

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Q: A 50 g ice cube at 00C is heated until 45 g has become water at 1000C and 5 g has become steam at…

A: Given data : latent heat of fusion, Lf =333000J/kglatent heat of vaporization,…

Q: 8. A container has a volume of 2m3 of diatomic gas at a pressure of 1Pa. How much more thermal…

A: Given data The volume of the container is V = 2 m3. The initial pressure is given as Pi = 1 Pa. The…

Q: Q 11:- If the distance between each atom and another in a molecule of ammonia gas (NH3) is constant,…

A: Distance between each atom and another in a ammonia molecule is constant

Q: If you have a mass of 55 g of ice that goes from – 10 oC to water vapor at 120 oC. (10 minutes) a-…

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Q: In an electrically heated home, the temperature of the ground in contact with a concrete basement…

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Q: A hot copper pot of mass 2.0 kg (including its copper lid) is at a temperature of 150OC. You pour…

A: Specific heat capacity of copper wire is Cc=377 J/kg0C, Specific heat capacity of water is CW=4186…

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

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Q: QUESTION 7 Consider a molecule with 8 degrees of freedom. Select the heat capacity at constant…

A: Given: Degree of freedom of a molecule f=8 To determine heat capacity at constant volume of an ideal…

Q: The temperature difference between the inside and the outside of a home on a cold winter day is…

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Q: A plot of the temperature versus the energy per kg added to a piece of ice as it goes from below…

A: Graph

Q: 2. A beaker of water A is at temperature 373 K while a beaker of water B has temperature 200 °F.…

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Q: Liquid water turns out to have a higher density at 4 Degrees Celcius than at any other temperature.…

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Q: The cooling system of a car engine contains 20.0 L of water (1 L of water has a mass of 1 kg).…

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Q: A coffee cup calorimeter contains 151.36 g of water at 22.50 °C. A 65.837 g piece of iron is eated…

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Q: 6. A chunk of ice (T= -20 degree C) is added to a themally insulated container of cold wate =0…

A: Ice is at -20° celsius temperature and water is at 0° celsius temperature. when they are placed…

Q: An oven for baking pizza operates at approximately 5258F. What is this temperature in degrees…

A: To solve the given question, we have to convert the given temperatures from degrees Fahrenheit to…

Q: mL cup of coffee is too hot to drink at 91C, so 100.0 mL of cold water at 6.5 C is added to cool it…

A: GivenVolume of coffee, Vc=450 mLTemperature of coffee, Tc=91°CVolume of cold water added, Vw=100…

Q: The air temperature above coastal areas is profoundly influenced by the large specific heat of…

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Q: In a physics experiment, a 0.100 kg aluminum calorimeter cup holding 0.200 kg of ice is removed from…

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Q: A 6.0 kg zinc cannonball has been sitting in the desert sun all day. Its temperature is 49°C. Night…

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

Q: What is the approximate amount of heat energy released when a 5.0 kg sample of the glass cools from…

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Q: What happens to objects when temperature increases? For instance, a jar cover can be removed by…

A: When temperature of objects is increased, then expansion of objects takes place.  This happens…