7. The amount of heat needed to raise the temperature of an object by 1° C is known as O Energy transfer O Specific heat O Insulation O Conduction
Q: A 1-kg ice at -20°C is taken up from the freezer. How much heat in calories is needed to melt and…
A: Given that:-mass of ice= 1 kg=1000 gmInitial temperature of ice=-20°CFinal temperature of the…
Q: 1. As the temperature of a solid increases, its specific heat А. increases С. increases, then…
A: 1) The specific heat of solids depends on the number of molecules that the solid contains. It does…
Q: Steam at 100°C is used to warm 350 g of water contained in a 300 g aluminum container. The initial…
A: Temperature of steam: Mass of water in Aluminium container: Mass of Aluminium container: Initial…
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: 1a) A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping,…
A: 1 pound of body weight burns 0.45 Cal/h. Therefore a person with body weight 151 lb(151 pound) burns…
Q: Choose the number that corresponds the following questions and statements. Which of the below is…
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Q: Thermography is a technique for measuring radiant heat and detecting variations in surface…
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Q: If we had a system on which 10 J of work is done and the internal energy change of the system is 3.5…
A: Given: The work done on the system is 10 J. The change in internal energy is 3.5 J.
Q: Which of the following statements is NOT true? O The amount of heat needed to increase the…
A: Heat added = specific heat × mass × change in temperatures. Hence Higher the specific heat, the…
Q: A 60.0-kg runner expends 351 W of power while running a marathon. Assuming 13.5% of the energy is…
A: The mass of the runner is .The power of the body is .The percentage of energy delivered to the…
Q: aluminum sample increases its temperature by 443◦C, when it absorbs 2000J. What is the mass of the…
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Q: You wish to chill your freshly brewed tea with the minimum amount of ice that will avoid watering it…
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Q: a) Calculate the number of calories given off by 500 g of water cooling from 20 deg. C to 5 deg. C.…
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Q: The average person drinks 2.6 L of water a day. If you drink 2.6 L of water at 0 degrees C and heat…
A: Given data as per question T1 = 0 T2 = 37 Volume = 2.6L density = 1g/ml
Q: Your body is like an "oven" set to 98 degrees F or 37 degrees C. Questions 6-8 are related to this…
A: Our body is at 370 C which is at a higher temperature than the atmospheric temperature.
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: 36) During an isothermal process, 5.0 J of heat is removed from an ideal gas. What is the change in…
A: The change in the internal energy of n mole of an ideal gas is ΔU=nCvΔT .....(1)where Cv is…
Q: Object 1 has nine times the specific heat capacity and four times the mass of Object 2. The two…
A: Vv
Q: Which of the following about the thermal properties of water are correct? Select all that apply.…
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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: Specific heat (c) J/kg°C 900 Problem 9: The number of kilocalories in food is determined by…
A: mass of peanut = 4.85 g mass of water = 0.475 kg mass of aluminum cup = 0.115 kg increase in…
Q: A container that acts as a perfect insulator contains two compartments, one containing hot gas and…
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Q: How much thermal energy is required to increase the temperature of a 390.00g sample of water from…
A: Given data: Mass (m) = 390.00 g = 390.00×10-3 kg Initial temperature (T0) = 15.00°C Final…
Q: "Say someone has 500 grams of water at 20 degrees Celsius. If they want to cool it down to zero…
A: Given mass of water m = 500 grams = 0.5 kgInitial temperature of water 200C
Q: A 6.22-kg piece of copper that is heated absorbs 728 kJ of energy. If the copper starts at 20.5° C,…
A: Solution:- Given, Mass of copper(m)=6.22kg…
Q: A 6.22-kg piece of copper that is heated absorbs 728 kJ of energy. If the copper starts at 20.5° C,…
A: Given that:-Mass, m=6.22 kg=6.22×103 kgE=728 kJ=728×103 JTi=20.5°CC=0.385 J/g°CWe know that:-E=mc∆T…
Q: How much heat transfer occurs from a system, if its internal energy decreased by 150 J while it was…
A: Given: Internal Energy (△U) = - 150 Joule Net work done ( W) = 30 Joule
Q: What is the (approximate) total heat energy absorbed by the system after traversing the path AEC? *…
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Q: What is the Kinetic Energy of 2 g of oxygen at -23℃? a) 186.2 J b) 194.86 J c) 201.45 J d)…
A: B
Q: 4. What is the change in internal energy of a system which does 4.50x10° J of work while 3.00x106 J…
A: Given, system does work of 4.50×105 J , heat transfer into the system is 3.00×106 J and 8.00×106 J…
Q: An ideal diatomic gas follows the thermodynamic cycle illustrated in the given PV-diagram. The…
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Q: When an ideal gas confined to a rigid glass container is heated, its pressure and temperature both…
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Q: Which one of the following processes does not occur during the convective transfer of heat within a…
A: Convection is mode of heat transfer which basically takes place due to density difference . Gravity…
Q: It is necessary to determine the specific heat of an unknown object. The mass of the object is 177…
A: Given data: Mass (m) = 177 g Heat Energy (Q) = 17 J Raise in the temperature (ΔT) = 10.0°C…
Q: Ice at U.00°C is added to 1.00 kg of orange juice, cooling it from 20.0°C to 5.00°C. What mass of…
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Q: 2 kg of ice at 0oC are placed in a closed glass beaker (k=0.80 W/m-C). The closed beaker is then…
A: Given data: Mass of the ice m= 2 kg Temperature T1=0°C Thermal conductivity k=0.80W/mC Temperature…
Q: 3) A thermodynamic system undergoes a process where its internal energy increases by 200 J. During…
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