Broiling is a method of cooking by radiation, which produces somewhat different results from cooking by conduction or convection. A gas flame or electric heating element produces a very high temperature close to the foodand above it. Why is radiation the dominant heat-transfer method in this situation?

Q: On a certain dry sunny day, a swimming pool's temperature would rise by 16.7 C° if not for…

A:

Q: What is the relation of heat transfer with the air conditioning system?

A: According to the second low of thermodynamics heat transfer takes place from a hotter body to a…

Q: A 1.3 kg metal head of a geology hammer strikes a solid rock with a speed of 3.7 m/s. Assuming all…

A: Since all the energy of the hammer is transferred into heat energy  Q=K.Ewhere Q is the heat…

Q: You can save money on electricity if you put your refrigerator in the basement, which is usually…

A: temperature variation with height:

Q: Is it valid to say that a hot object contains more heat than a coldobject?

A: Answer is NO. Heat is not a quantity it is the energy in transit between two bodies of different…

Q: Should a modern kitchen be air-conditioned? Will this  create cold food(which is supposed to be…

A: Yes, a modern kitchen can be air-condtioned. If the kitchen is an open one then installing an air…

Q: Following vigorous exercise, the body temperature of an 80.0 kg person is 40.0 °C . At what rate in…

A:

Q: A gas has two specific heats whereas a liquid and and a solid have only one.Why?

A: When heated, the solid or liquid will not undergo any change in its pressure or volume.

Q: TH Ta 4.00cm 3.00cm 2.20m A rectangular bar of gold has the dimensions as shown. (This is a very…

A: length of gold bar, l= 2.2 m cross-section area , A= (3 cm)x(4 cm)=12 cm2 = 12 x(10-2 m )2 = 12 x…

Q: In the power plant of nuclear submarine, the temperature of the water in the reactor is above 100…

A: inside such a  reactor  the pressure is maintained to a higher level therefore, the water inside the…

Q: The human body, while at rest, produces heat energy at a rate of about 116 W. How much sweat (in g)…

A: Given data The heat energy is given as Q˙=116 W. The latent heat of vaporisation is given as Lv =…

Q: What is the change in internal energy of a system which does 4.50×105J of work while 3.00×106 J of…

A: The change in internal energy(ΔU) of a system.given,workdone(W)=4.50×105 J Heat goes…

Q: How much heat transfer (in kilocalories) is required to thaw a 0.450-kg package of frozen vegetables…

A: It is given that,

Q: A 50 cm by 100 cm stainless steel plate with emissivity of 0.85 is maitained at 500 degrees Celsius.…

A: Given: Area of steel body = 50 cm × 100 cm. Emissivity (e) = 0.85 Temperature at which body is kept…

Q: A 60.0-kg runner expends 3.00 x 102 W of power while running a marathon. Assuming 10.0% of the…

A: Given:mass = 60 kgpower = 300 wenergy delivered = 10 %latent heat of vaporization of water is 2.41 X…

Q: On a certain dry sunny day, a swimming pool’s temperature would rise by 1.50 °C if not for…

A: Given data The increase in temperature ∆T=1.50°C.   The mathematical expression for the heat…

Q: On a certain dry sunny day, a swimming pool’s temperature would rise by 1.50ºC if not for…

A:

Q: Name two factors on which the heat energy liberated by a body on cooling depends.

A: The heat energy liberated by the body depends on the specific heat capacity of the body, the mass of…

Q: A 76.0-kg person suffering from hypothermia comes indoors and shivers vigorously. How long does it…

A: The shivering creates the energy of 425 W.  Therefore, from the expression of the heat transfer and…

Q: The human body, while at rest, produces heat energy at a rate of about 100 W. How much sweat (in g)…

A:

Q: A coffee cup calorimeter contains 48.00 grams of water at 25.0°C. Two additional samples of water…

A: When heat energy is supplied to or absorbed from an object, according to the energy conservation…

Q: Someone claims that the air space in a double-pane window enhances the heat transfer from a house…

A: We would disagree with this recommendation since the air space introduces some thermal resistance to…

Q: 6.20. On a summer day, in Phoenix, Arizona, the inside room temperature is maintained at 68 °F while…

A: According to Bartleby policy as you have not specified the number of questions to solve we will…

Q: A 60.0-kg runner expends 300 W of power while running a marathon. Assuming 10.0% of the energy is…

A: Determine the energy spent by the runner.

Q: What has the greatest increase in Temperature given these materials of the same mass receive the…

A:

Q: A 2.0-kg aluminum block is originally at 10 degrees celcius. If 36 kJ of energy are added to the…

A: Given, Heat energy, Q=36  kJ=36000 J Initial temperature, Ti=10°C=283.15 K  Specific heat capacity,…

Q: During a process, the internal energy of a system increases by 16 Kj, at the same time it performs a…

A: According to the first law of thermodynamics,  dQ = dU + dW  where, dQ is the heat supplied, dU is…

Q: How much heat is needed to completely vaporize 20 grams of ice, initially at 5oF? (Note that initial…

A: Covert 5 Fahrenheit into degree Celsius.

Q: Can all three modes of heat transfer occur simultaneously (in parallel) in a medium?

A: Due to difference in temperature energy get transfer, this energy is heat energy. Transfer of heat…

Q: The specific heat of a substance varies with temperature accordingto the function c = 0.20 + 0.14T +…

A: The equation for the heat energy required is given by,

Q: A 2.0 kg metal head of a geology hammer strikes a solid rock with a speed of 5.8 m/s. Assuming all…

A:

Q: The human body, while at rest, produces heat energy at a rate of about 103 W. How much sweat (in g)…

A: The expression for the amount of sweat is,

Q: During moderate activity, the body of a person weighing 70 kg creates 1.0 MJ energy per hour. About…

A: SOlution: Given that m = 70 kg E = 1 MJ 80% of that energy is converted into heat.

Q: Emission of heat by radiation is directly proportional to the temperature of the source. O a. True O…

A: True, Heat emission through radiation mode is dependent on source temperature.

Q: The specific heat of a substance varies with temperature according to the function c = 0.20 + 0.14T…

A:

Q: A thirsty nurse cools a 2.00 L bottle of a soft drink (mostlywater) by pouring it into a large…

A: Given:- A thirsty nurse cools a 2.00 L of water =2.0 kg  The mass of the aluminum mug is 0.257 kg…

Q: The specific heat capacity of water is extremely high. If it were much lower, say, one-fifth as…

A:

Q: Solar radiation is incident on a 5 m2 solar absorberplate surface at a rate of 800 W/m2.…

A: Given Data: The area of the surface plate is, A=5 m2 The heat supplied rate is, qsolar=800 W/m2 The…

Human Metabolism

Being described as the most complicated machine ever encountered by humans, the human body and the cell metabolism is nothing less than a wonder. Metabolism is the set of life-sustaining chemical reactions within organisms.