Recent content by chameleon1

hahaahaha 26 posts to get it right yesssssssssss

385*40*1080 = 16632000 210,000J/kg*40kg = 8400000 16632000 + 8400000 = 25032000j/kg this is thermal energy needed thats right now

1080 k * 40kg (mass) = 43200 from post 3 so 210,000 j/kg * 40kg = 8400000 from post 10 = 43200 + 8400000 = 8443200 is that right if it is what is the symbol i should put at the end

16632000 + 8400000 = 33432000Q Q = m x T x Cp Q = change in thermal energy m= mass of substance T = change in temperature (Tf – Ti) Cp = specific heat of substance i got this from a website so is it 33432000 Q OR what's the symbol for the thermal energy

16632000 + 8400000 = 33432000 j/kg Thats the answer and that's the right sysmbol i put at the end?

and what was The i had figured how much to melt the block, once it got to 1360K

am lost with all this numbers now , tell me how to do this as i have tried already, once you tell me it will stick into my head , what's the answer to this ridddle :)

so 1350k - 280k = 1070k so 1070k needed to get it to 1360k then add 1360k to 8400000 but most likely not OR?

so 210,000 j/kg * 40kg = 8400000 but what do i need to add it too in order to get the thremal energy

not sure, is there a formula which you can telll me , sorry i don't want to sound stupid, but maths and physics are not my thing but i have tooo to this its one of my modules please help me further and next time i would be able to this myself

do i need to divide 210,000 by 40kg mass = 5250 OR??

Thanks for the welcome . SHC heat change is 1360 k - 280 k = 1080K 1080 k * 40kg (mass) = 43200 43200 * 385 j/kg/k = 16632000 to calculate quantity of thermal energy, then multiply mass, the specific heat capacity (for liquid water this is 4.19J/g degrees Celsius), and the change...

Thanks for the welcome . SHC heat change is 1360 k - 280 k = 1080K 1080 k * 40kg (mass) = 43200 43200 * 385 j/kg/k = 16632000 to calculate quantity of thermal energy, then multiply mass, the specific heat capacity (for liquid water this is 4.19J/g degrees Celsius), and the change...

Homework Statement Define specific heat capacity and latent heat of fusion. Copper melts at a temperature of 1356 K with a latent heat of fusion of 210,000 J/kg (Joules per kilogram). Calculate the thermal energy required to convert a copper bar with a mass of 40 kg at a temperature of...