0
Say you are investigating a murder and want to know when the victim was killed. If the body is cold, you can guess that the murder did not happen very recently. But can you be more precise in order to catch the killer? First, you will want to measure the internal temperature of the body, its core temperature. Once you have the core temperature, what else do you need to know to determine when the murder took place? Well, you will want to know what the temperature of the surroundings was in the recent past. If the body was found in the morning, you will want to know what the temperature in the area was overnight, for example. You will also want to determine if the body was insulated, say, by heavy clothing. More clothing will obviously slow the rate of heat loss. Suppose the body was found in a swimming pool or in a lake. How would this affect the rate of heat loss? One concept that is particularly important is rate of change.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How would the shape of an object affect the rate of change in temperature?
The larger the surface area the faster the rate of heat loss will be.
How much does one degree change in heat cost you?
It depends upon: 1. The volume of air in the house. 2. The rate of heat loss of the house. heat loss is 75,000btu/hr volume is 2800sq feet x 8 feet ceiling height
How does heat stay in a metal kettle?
Once the heat has been turned off the kettle, it will begin to lose heat. The rate of heat loss depends on the thickness of the kettle's walls, the amount of boiling water that was in the kettle before the heat was turned off, and the temperature of the room the kettle is stood in. When tea is traditionally brewed in teapots, a woolly knitted cover (known as a cosy - in the UK) was placed over the teapot to slow down the rate of heat loss.
What are the two factors that affect the rate of heat gain or loss of am object through radiation?
Surface area and temperature gradient
How does loft insulation save heat energy?
Heat always flows from a warm region to a cooler region. An uninsulated house loses heat at a faster rate during cold climates than an insulated one. Insulating a loft reduces the amount of heat loss from the roof by means of installing insulating materials such as fiberglass matting, which reduce the U-value of the loft. The U-value provides an indication of how much heat loss occurs from an area, the higher the U-value, the greater the heat loss.
How the surface area affects heat loss?
Heat loss of water: The surface area effects the the rate of heat loss because the rate of heat loss increases if the surface are is higher. How: The water is spread out into a bigger space meaning the
The rate of heat loss from the hot cup change during the experiment answer?
The rate of heat loss from the hot cup decreased during the experiment.
Why doesn't ice wrapped in newspapers melt easily?
Ice melts because it absorbs heat from its surrounding. Wrapping ice around in a newspaper cuts down this heat loss to the surrounding. As a result, ice melts at a slower rate when wrapped in a newspaper than it would if left unwrapped.
What is cooling rate and how is it measured?
it is the rate of heat loss in an element... it can be measured by a thermometer. hope this helps! :)
What is adiabatic rate?
the rate of cooling that occurs when dry air rises without gain or loss of heat
How does fur reduces the rate of heat loss from an organism?
Fur can hold a layer of air around it.That layer act as an insulator.So it reduces heat loss.
What is dry adiabatic rate?
the rate of cooling that occurs when dry air rises without gain or loss of heat
How would the shape of an object affect the rate of change in temperature?
The larger the surface area the faster the rate of heat loss will be.
Heat Rate in Natural gas based Combined Cycle Power Plant?
today rate of natural gas
How much does one degree change in heat cost you?
It depends upon: 1. The volume of air in the house. 2. The rate of heat loss of the house. heat loss is 75,000btu/hr volume is 2800sq feet x 8 feet ceiling height
How does heat stay in a metal kettle?
Once the heat has been turned off the kettle, it will begin to lose heat. The rate of heat loss depends on the thickness of the kettle's walls, the amount of boiling water that was in the kettle before the heat was turned off, and the temperature of the room the kettle is stood in. When tea is traditionally brewed in teapots, a woolly knitted cover (known as a cosy - in the UK) was placed over the teapot to slow down the rate of heat loss.
What are the two factors that affect the rate of heat gain or loss of am object through radiation?
Surface area and temperature gradient
;%20background-position:%20top%20left;%20background-repeat:%20no-repeat;%20height:%2022px){kind=link}