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Physics HELP Heat capacity etc. Careful its tricky!?
ok im finding these impossible please help!
The specific heat capacity of oxygen is 913 J/kg degrees C
How much energy is needed to raise the temperature of 1kg of oxygen by 1 degree C?
Calculate the ebnergy transferred from a glass of to melt 100g of ice cubes at 0 degrees C
a copper saucepan has a mass of 1.5kg.
It is used to cook potatoes. Calculate how much extra energy is needed to raise the temperature of the saucepan from 15 degrees C to 100 degrees C.
190MJ of energy are needed to melt 500kg of aluminium at 660 degrees C. Calculate the specific latent heat of aluminium.
please help!
thanks
The definition of heat capacity is the amount of energy required to raise one pound of a substance one degree F. The answer to the first one is 913 J/kg because the only change was units. Convert if needed, but it will solve your others also.
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