Post: Science homework.. NEED HELP :|
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10-11-2011, 04:01 PM
#1
Mr. DarkKV
League Champion
10-11-2011, 04:05 PM
#2
Officer Laggy
Banned
Originally posted by Mr.
Okay need help asap :|
1. The specific heat capacity of oxygen is 913 J/kg °C How much energy is needed to raise the temperature of 1 kg of oxygen by 1°C
2. Calculate the energy transerred from a glass of coke to melt 0.1 kg of ice cumbes at 0°C The specif it latent heat for melting ice is 340 000 J/kg
1. The specific heat capacity of oxygen is 913 J/kg °C How much energy is needed to raise the temperature of 1 kg of oxygen by 1°C
2. Calculate the energy transerred from a glass of coke to melt 0.1 kg of ice cumbes at 0°C The specif it latent heat for melting ice is 340 000 J/kg
the answer is MY DOG ATE MY HOMEWORK..... THEIR U GO
:FU:
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10-18-2011, 10:51 PM
#4
.Kryptonite
Banned
Originally posted by Mr.
Okay need help asap :|
1. The specific heat capacity of oxygen is 913 J/kg °C How much energy is needed to raise the temperature of 1 kg of oxygen by 1°C
2. Calculate the energy transerred from a glass of coke to melt 0.1 kg of ice cumbes at 0°C The specif it latent heat for melting ice is 340 000 J/kg
1. The specific heat capacity of oxygen is 913 J/kg °C How much energy is needed to raise the temperature of 1 kg of oxygen by 1°C
2. Calculate the energy transerred from a glass of coke to melt 0.1 kg of ice cumbes at 0°C The specif it latent heat for melting ice is 340 000 J/kg
1. Actually is it 913 J/kgC, degrees Celsius.
Is the "1 degree" Celsius? you need to be specific.
U = c·m·∆T
U is energy in Joules to heat the material by ∆T
c is specific heat of the material in J/kg·K
m is mass in kg, ∆T is temperature change in ºC
U = 913 J/kgC x 1 kg x 1ºC = 913 Joules
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