How many joules of heat is required from the environment to warm up a 81kg human from the hypothermal state (35 C) back to normal temperature (37 C)

Q: At a local convenience store, you purchase a cup of coffee, but, at 98.4°C, it is too hot to drink.…

A: Given: Initial temperature of coffee T1 = 98.4°C Initial mass of coffee V = 248 mL Give that density…

Q: The average temperature of the atmosphere has increased by 0.4°C over the last thirty years.…

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Q: 1. (a) The number of kilocalories in food is determined by calorimetry techniques in which the food…

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Q: An ice bag containing 0°C ice is much more effective in absorbing heat than one containing the same…

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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: Q6. The specific heat capacity of a substance is defined as: the amount of energy for a substance…

A: 6) Specific heat capacity is defined as the heat required by a 1 kg substance to increase the…

Q: 4. A woman finds the front windshield of her car covered with ice at -12°C. The ice has a thickness…

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Q: Imagine a person standing naked in a room at 19.1°C. The walls are well insulated, so they also are…

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Q: During a bout with the flu an 980-kg man ran a fever of 39.0° C instead of the normal body…

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Q: During heavy exercise, the body pumps 2.00 L of blood per minute to the surface, where it is cooled…

A: The expression for the required rate of heat transfer is,

Q: (a) The number of kilocalories in food is determined by calorimetry techniques in which the food is…

A: Given Data: The mass of the peanut is The amount of water is The mass of the aluminum is Variation…

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

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Q: One gallon of water, which is in a bottle at room temperature of 25 °C, is poured over 1.7 kilograms…

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Q: 1. (a) How much heat transfer is necessary to raise the temperature of a 0.26 -kg piece of ice from…

A: Given,Mass of ice = 0.26 kg The temperature change from 0°C to 135°C The energy needed for phase…

Q: Students on a spring break picnic bring a cooler that contains 5.3 kg of ice at 0.0°C. The cooler…

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Q: When M₁ gram of ice at -10°C (specific heat = 0.5 cal g-¹°C-¹) is added to M₂ gram of water at 50°C,…

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Q: A thermos contains m1=0.81kg of tea at T1=26 degrees Celcius. Ice (m2=0.065kg, T2=0 degrees celcius)…

A: Given, mass of the tea, m1 = 0.81 kg temperature, T1 = 26 oC mass of the ice, m2 = 0.065 kg Specific…

Q: 350 grams of copper pellets are removed from 330°C oven and immediately dropped into 400 mL of water…

A: mass of copper pellets = 350 g initial temperature of pellets = 330 C mass of water = 400 grams ( as…

Q: Initially you have mwater=4.2kg of water at Twater=66 degrees celcius in a insulated container. You…

A: Recall Q=mc∆T Also, principle of calorimetry. Heat lost by hotter body=heat gained by colder body

Q: During heavy exercise, the body pumps 2.00 L of blood per minute to the surface, where it is cooled…

A: Heat transfer is given by,  Q=mS∆T Here,  m is mass and S is specific heat of blood and ∆T is change…

Q: ou are in space, compare the rate of heat loss for bare skin vs. a nice thick layer of…

A: Average mass of human m=75 kg and average/room temperature T=298 K. Specific heat of human body…

Q: For a cube-shaped room, 10 ft on a side, what will be the rate of heat loss if the R-value is 4…

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Q: what is the date of heat conduction through the wooden floor ??

A: Given data: Length, l=0.12 m k=0.141 W/mC0 Area, A=30 m2 Temperature, T2=23.0 0C Temperature,…

Q: A 155-g aluminum cylinder is removed from a liquid nitrogen bath, where it has been cooled to -196…

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

A: length, L = 139 km  width, w = 34.1km height, h = 216 m  density, d = 917 kg/m3  Annual energy = 9.3…

Q: The average temperature of the atmosphere has increased by 0.4°C over the last thirty years.…

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Q: Suppose you want to raise the temperature of a 0.21-kg piece of ice from -20.0degrees Celsius to…

A: Given data, Mass =m=0.21 kg Latent heat of fusion Lf=334 kJ/kg Latent heat of vaporization Lv=2256…

Q: A pronghorn antelope can run at a remarkable 18 m/sm/s for up to 10 minutes, almost triple the speed…

A: mass (m) = 32 kg speed (v) = 18 m/s Power = 3.4 kW = 3400 Wtime = 10 minutes

Q: An ice bag containing 0°C ice is much more effective in absorbing heat than one containing the same…

A: The mass of water m1=0.740 kg. The mass of ice m2=0.740 kg. The specific heat capacity of water c=1…

Q: The heat of vaporization of water is 540 cal/g, and the heat of fusion is 80 cal/g. The heat…

A: We will need the total heat for three steps 1) converting ice at -15°C to ice at 0°C. 2) converting…

Q: Suppose that in our lab on calorimetry, 80 g of aluminum at -20° Celcius was added to 120 g of water…

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Q: You have just been to the shops and purchased a 3kg bag of ice (assume all at 0°C) to cool a 24 pack…

A: Given: Mass of ice = 2 kg Initial temperature of ice = 0 degrees No of beverage containers = 24…

Q: A certain alcohol has a specific heat of 0.57 cal/g\deg C and a melting point of -114\deg C. You…

A: There are mainly three forms of water: ice, water( liquid state) and gas. When ice is melted into…

Q: Calorie is defined as the amount of heat required to raise the temperature of 1g of water by 1°C and…

A: C

Q: To help prevent frost damage, 4.77 kg of 0°C water is sprayed onto a fruit tree. The latent heat of…

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

A: Volume = 148000 * 39100 * 247 m3  = 1.43 * 1012 m3 Mass = volume * density  = 1.43 * 1012 * 917  =…

Q: Ice at 00C  is placed in a Styrofoam cup containing 0.32 kg of lemonade at 270C . The specific heat…

A: Ice at 00C  is placed in a Styrofoam cup containing 0.32 kg of lemonade at 270C . The specific heat…

Q: The initial temperature of 60 g of ice is -20⁰C. The specific heat capacity of ice is 0.5 cal/g.C⁰…

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Q: In a laboratory experiment, 16.0 J of heat raised the temperature of a 199-g object from 25.0° C to…

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Q: 1. (a) The number of kilocalories in food is determined by calorimetry techniques in which the food…

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Q: w much energy (in J) is required to raise the temperature of that volume of water from 12.8°C to…

A: Given values:- The volume of water,(V)=3.60 x 1012 m3 ----(1) The density of water,(ρw)=998.23 kg/m3…

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

A: Given: The density of the ice is 917 kg/m3. The latent heat of fusion is 33.5×104 J/kg. The…

Q: You have just been to the shops and purchased a 3kg bag of ice (assume all at 0°C) to cool a 24 pack…

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Q: A pond in winter has a layer of ice 5cm thick. The temperature of the air above the ice is -10C and…

A: (i) The amount of heat transferred is Q=kiceATh-Tltd=2.2 WmC 1 m20--10° C1 s5×10-2 m=440 J

Q: Ten grams of ice at 0 °C is placed in a Styrofoam cup containing 300 g of coffee initially at 90 °C.…

A: Consider a cube of ice (mass mi) and the coffee (mass mc) is at temperature Ti and Tc initially…

Calorimetry

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