Q = cm t (raising water temperature -- answer given looks wrong)
2015年4月16日 · Hey ya'll my question reads: Use the formula Q = cmt to show that 300 cal are requited to raise the temperature of 300g of water from 22 degrees C to 30 degrees C. For the …
How Much Heat Must Be Removed to Make Ice from Water at …
2010年5月17日 · Homework Statement How much heat (in kcal) must be removed to make ice at –10°C from 2 kg of water at 20°C? (The specific heat of ice is 0.5 cal/g °C.) Homework …
Water equivalent of calorimeter - Physics Forums
2015年2月26日 · Homework Statement The water equivalent in kg, of a calorimeter having a mass of 0.3 kg and a specific heat of 0.2 is Homework Equations q=cmT The Attempt at a …
Calculating Heat of NaOH Dissolution in Water - Physics Forums
2009年11月11日 · a) Calculate q H20. I used the equation q = cmt, so q = (4.18)(53.0)(9.70) = 2150J b) Find the change of enthalpy for the reaction as it occurred in the calorimeter. = …
Latent Heat and final temperature - Physics Forums
2006年11月29日 · Steam: Q=2.26*10^6 * m (m is what I'm trying to find) The amount of heat being released from the steam condensing to water is the amount of heat that raises the …
What is the temperature change of blood? - Physics Forums
2004年2月11日 · I'm assuming that you would use the equation T=Q/cm and when I do, I end up with an answer of .95 degrees celcius which I know is wrong. Can anyone explain this to me? …
How Long Would It Take for Earth to Reach 100°C? - Physics Forums
2009年7月18日 · I'm not entirely sure either. But using Q=cmT to find out the energy needed to heat the water, and then dividing by the intercepted energy. Q=4x(1.08x10^26)x100 …
Evaporation of Water on a Jogger - Physics Forums
2007年5月24日 · The latent heat of vaporization of H2O at body temperature (37.0°C) is 2.38E+6 J/kg. To cool the body of a 71.9 kg jogger [average specific heat capacity = 3550 J/(kg*°C)] by …
Solving Solar Energy Problem: Collector Area Needed - Physics …
2007年12月3日 · Q=mcT where m is the density times the volume then with Q i found Power which is Q/t then with power i plugged it into the intensity equation of I=P/A (p is power not …
Calculating Heat Required to Change 1.0 kg of Ice to Steam
2009年12月3日 · I had originally tried to use the equation Q=cmT, with the values plugged in as Q=4186*1*150, giving me 627.9 kilocalories, but this is incorrect. Physics news on Phys.org …