English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

10 answers

Cold represents a lack of energy so that makes it tough to extract energy from cold.

2007-07-23 11:11:19 · answer #1 · answered by Rich Z 7 · 0 1

Substances have energy at all temperatures above absolute zero temperature.
A cold substance will transfer heat energy to a colder substance. The greater the temperature difference between the cold and the colder, the greater will be the heat transfer rate.

2007-07-23 11:31:39 · answer #2 · answered by Norrie 7 · 0 0

Heat and cold are relative terms. Heat is simply defined as a temperature above a reference temperature. Likewise, cold is defined as a temperature below a reference temperature. If you move the reference downward then cold can become heat to a lower reference temperature. At this point the answer to your question becomes yes since you can always (theoretically) get energy from a higher temperature.

Got it?

2007-07-23 11:13:47 · answer #3 · answered by Flyboy 6 · 0 0

Simply put:
Heat is the presence of energy, cold is it's absence.
We can draw energy from a difference between hot and cold 'sinks`.
If there is no difference one draws no energy.

2007-07-23 13:17:49 · answer #4 · answered by Irv S 7 · 0 0

In literal terms of physics, there is no such quantity as 'cold', only differences in the amount of heat.

That being said, anytime there is a significant difference in the amount of heat contained in two objects, there is potential for energy to be transfered between the two.

2007-07-23 11:14:20 · answer #5 · answered by Jay 5 · 0 0

beforehand the days of electrical energy human beings controlled to maintain heat in wintry climate with log fires (no longer functional these days except that's wood from renewable components). kind of clothing grew to become into lots heavier and layered. This kind of gown could be imitated with contemporary thermal under clothing no longer so heavy or restrictive yet easily heat. for women individuals a scarf grew to become into oftentimes used to maintain the back heat and adult adult males can consistently positioned on a waistcoat or jerkin. interior the evening notwithstanding if that's no longer yet too chilly and you go with to sit down down and study or watch the television then somewhat of putting on the heating sling a spare quilt for the duration of your legs merely to take off the coolness. warm drinks will help to heat and familiar transferring approximately will stimulate your stream. whilst the heating needs to bypass on save the temperature at a decrease point and positioned on warmer clothing somewhat than set the temperature to extreme and sit down in short sleeves. turn off the water once you sparkling your teeth this could save lots of water. positioned funds into potential saving mild bulbs. Fill the dishwasher up appropriate beforehand utilising. Fill the refrigerator and the freezer because of the fact the extra there is in it the extra appropriate that's going to functionality. If working the freezer down then fill a bag with previous newspaper to make a cumbersome kit to put in your freezer. Be gas financial whilst using your vehicle or using a motor bike and stroll whilst feasible.

2016-12-10 19:49:03 · answer #6 · answered by Anonymous · 0 0

more simply put
energy can't be created or destroyed only moved.
energy move from a high potential to a low potential.
heated objects have a high potential.
when u extract energy from steam u cool it off.
That is how perspiration cools u off - reverse process making steam.

2007-07-23 13:53:15 · answer #7 · answered by Bill R 7 · 0 0

No.

By definition, heat is a form of energy.

Heat can be measured in calories or joules, both which are units that measure energy.

So therefore, heat is a form of energy that can be converted into another form of energy.

Cold is, well, a lack of energy.

So, the answer is no, unfortunately.

Otherwise we have an infinite supply of energy. Wishful thinking, though.

2007-07-23 11:12:41 · answer #8 · answered by Ben 3 · 0 2

Yes, but only by making it colder.

On the other hand, you can make other process more efficient by introducing a larger temperature differential. For example if you placed an air conditioning unit's condenser section in a cooler environment it would be more efficient.

2007-07-23 11:59:22 · answer #9 · answered by dogsafire 7 · 0 0

YES, YES, YES !! Come on ,engineer guys, don't you remember the HVAC heat pump ?

2007-07-23 12:44:11 · answer #10 · answered by Bomba 7 · 0 0

fedest.com, questions and answers