Thermodynamics.

How much heat must be added to 300g of water to raise it's temperature from 20 to 80 C?
by newyear1 on November 26th, 2011 | one answer | in Thermodynamics

by Anonymous on December 31st, 1969 | no answers | in

what is the change in internal energy of a system when 500J of heat is added and the system does 300J of work?
by newyear1 on November 26th, 2011 | no answers | in Thermodynamics

how much heat is required to melt 2kg of ice at 0c?
by newyear1 on November 26th, 2011 | 2 answers | in Thermodynamics

what is the relationship between the rate and thermal conductivity?
by xstreet on November 24th, 2011 | 3 answers | in Thermodynamics

Do you like to scream at fire hydrants?
by Have A Nice Day on November 4th, 2011 | 6 people like this | 14 answers | in Thermodynamics

200 l of water 1OA power 100V. 20°C no heat loss what temperature after 7 hours
by jessiedog on October 30th, 2011 | 1 person likes this | one answer | in Thermodynamics

I have a heated plate (200C) and a substrate on that plate (10mm). Need to plot the temp on back of the sustrate vs. time (0 to 300s). Help!
by MAPhipps on October 1st, 2011 | no answers | in Thermodynamics

What's the smallest thermal energy transformer around?If heat of engine could be made into electricity for fuel how could it be added?
by wiseacre on September 13th, 2011 | no answers | in Thermodynamics

Do you think its hard to get into something thats theoretical?
by Bornabrit on August 27th, 2011 | 5 people like this | 4 answers | in Thermodynamics

If cold water of about 5 degrees celcius is run around a sealed can filled with air at about 40 degrees celcius , what will happen?
by Inddiggo:)) on June 23rd, 2011 | no answers | in Thermodynamics

Have you ever asked a question on here but felt the need to retract it because you feel it may cause an undesirable result?
by mikedsign on May 28th, 2011 | 1 person likes this | one answer | in Thermodynamics

Is there a theoretical limit as to how hot something can get as well as to how cold something can get?
by Zack on May 28th, 2011 | 6 people like this | 9 answers | in Thermodynamics

do air molecules speed up or do they expand and push some out of the room when they are introduced to the heat source of light?
by Brandy_F on February 3rd, 2011 | 1 person likes this | 3 answers | in Thermodynamics

What thermodynamic formulas and calculations will show that water must freeze/melt at 32 degrees F at standard pressure of one atmosphere?
by Edward_P on January 17th, 2011 | one answer | in Thermodynamics

Which metal expands as it gets colder?
by Ombliss22 on January 8th, 2011 | 2 people like this | one answer | in Thermodynamics

When water is about about to simmer, if you turn off the heat, steam escapes. When you turn the heat back on, steam stops. Why?
by stephbro on January 1st, 2011 | 1 person likes this | 2 answers | in Thermodynamics

How can I be a less powerful non racist?
by Have A Nice Day on December 3rd, 2010 | 3 people like this | 8 answers | in Thermodynamics

if a refrigerator is kept open in an insulated room, what will happen to the room temperature?
by gopirathinam on November 13th, 2010 | 1 person likes this | 4 answers | in Thermodynamics

Can a fire be started without a spark?
by cgoodell on October 11th, 2010 | 2 people like this | 10 answers | in Thermodynamics

Entropy is decreased if a liquid flows from a higher height to lower. Is it correct?
by ulsaikia on October 2nd, 2010 | one answer | in Thermodynamics

In thermodynamics it is a law that energy cannot be created or destroyed?
by Tahuti on September 26th, 2010 | 1 person likes this | 2 answers | in Thermodynamics

Would mercury thermometer break if the temperature went below its freezing point?
by hacknepa on September 21st, 2010 | 1 person likes this | 3 answers | in Thermodynamics

Is current knowledge indicating that the total energy of our universe is zero?
by Fruitpunchsamurai on September 12th, 2010 | 1 person likes this | 2 answers | in Thermodynamics

What do you think of Stephen Hawkings?
by Freedom00 on September 11th, 2010 | 5 people like this | 14 answers | in Thermodynamics

du=dq+dw heat and work where is the power of light?
by ramiradi on September 8th, 2010 | no answers | in Thermodynamics

am I wrong? a cirlce fits in a square. If you said yes, than how did an airliner fit into the little hole at the pentagon on 9-11?
by brianfoxlive on August 23rd, 2010 | 4 answers | in Thermodynamics

How can I store dry ice so that most of it will still be there after a week, preferably longer?
by flarn2006 on August 21st, 2010 | 3 answers | in Thermodynamics

How much could I cool a room using 10 lbs of dry ice?
by lucidlemur on August 17th, 2010 | one answer | in Thermodynamics

When you use all of the air in Dust Off compressed air what is left in the can?
by jesuis on July 30th, 2010 | 2 answers | in Thermodynamics

What is the formula for working out the energy (J or Kw) in a chimney? All I know is: Temp=1100degC, Flow=15m/s & Dia=150mm
by Colin9999 on July 22nd, 2010 | one answer | in Thermodynamics

Prove that Change in Rankine=1.8*Change in Kelvin
by Krizzia on June 22nd, 2010 | one answer | in Thermodynamics

Prove that Change in Fahrenheit=1.8*Change in Celsius
by Krizzia on June 22nd, 2010 | 4 answers | in Thermodynamics

Prove that Change in Celsius = Change in Kelvin
by Krizzia on June 22nd, 2010 | 1 person likes this | 3 answers | in Thermodynamics

Prove that Change in Fahrenheit = Change in Rankine
by Krizzia on June 22nd, 2010 | one answer | in Thermodynamics

What "decides" that an element or compound will be solid, liquid or gas at a certain temperature?
by Robogirl_roboguy_robodog_robocat_in_2030 on June 19th, 2010 | 2 people like this | 7 answers | in Thermodynamics

A refrigerator of coefficient of performance of 2. Q contd.. in the description.
by sinead809 on May 4th, 2010 | no answers | in Thermodynamics

Is it possible to measure Ground temperatures with a reptile stick on glass thermometer and How?
by Redlucifer on April 25th, 2010 | no answers | in Thermodynamics

If I were to place a radiator on top of an insulated material lead down what could be used to make heat disperse more widely?
by morebizarre on April 16th, 2010 | 3 answers | in Thermodynamics