Question

What quantity of heat is needed to convert 5 kg of ice at -19 degrees C...

What quantity of heat is needed to convert 5 kg of ice at -19 degrees C to steam at 100 degrees C?

Heat = 13590000 Joules -wrong

Homework Answers

Answer #1

Mass of ice = m = 5 kg

Initial temperature of ice = T1 = -19 oC

Melting point of ice = T2 = 0 oC

Boiling point of water = T3 = 100 oC

Specific heat of ice = C1 = 2100 J/(kg.oC)

Specific heat of water = C2 = 4186 J/(kg.oC)

Latent heat of fusion of water = L1 = 3.34 x 105 J/kg

Latent heat of vaporization of water = L2 = 2.26 x 106 J/kg

Heat needed to convert the ice from -19oC to steam at 100oC = H

H = mC1(T2 - T1) + mL1 + mC2(T3 - T2) + mL2

H = (5)(2100)(0 - (-19)) + (5)(3.34x105) + (5)(4186)(100 - 0) + (5)(2.26x106)

H = 1.526 x 107 J

Heat needed to convert 5 kg of ice at -19oC to steam at 100oC = 1.526 x 107 J

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
What is the minimum amount of heat, in Joules, needed to fully convert a 1-kg block...
What is the minimum amount of heat, in Joules, needed to fully convert a 1-kg block of ice at 250 K to steam? cice = 2090 J/kg-°C , cwater = 4186 J/kg-°C , csteam = 2010 J/kg-°C, Lfushion-water 3.33x105 J/kg, Lvaporization-water = 2.26x106 J/kg
How much heat is needed to convert 10 kg of water at 30◦C to: (a) water...
How much heat is needed to convert 10 kg of water at 30◦C to: (a) water at 100◦C? (b) steam? (c) ice? Take: Specific heat capacity of water = 4.186 kJ/kg◦C Latent heat of vaporization of water = 2264 kJ/kg Latent heat of fusion of water = 333 kJ/kg.
What quantity of energy does it take to convert 0.200 kg ice at –20.°C to steam...
What quantity of energy does it take to convert 0.200 kg ice at –20.°C to steam at 250.°C? Specific heat capacities: ice, 2.03 J/g·°C; liquid, 4.2 J/g·°C; steam, 2.0 J/g·°C; = 40.7 kJ/mol;  = 6.02 kJ/mol. What is the energy in kJ
How much heat is needed to bring 30 kg of ice at -8 degrees celsius to...
How much heat is needed to bring 30 kg of ice at -8 degrees celsius to steam at 125 degrees celsius?
A.) How much heat is required to convert 15.0 g of ice at -13.0 ∘C to...
A.) How much heat is required to convert 15.0 g of ice at -13.0 ∘C to steam at 100.0∘C ? Express your answer using three significant figures. (Joules) B.)How much heat is required to convert 15.0 g of ice at -13.0 ∘C to steam at 100.0∘C? Express your answer using three significant figures. (kcal)
determine the heat necessary to convert 3.00kg of steam at 150 degrees Celsius into ice at...
determine the heat necessary to convert 3.00kg of steam at 150 degrees Celsius into ice at -10 degrees Celsius
How much heat is needed to convert 1 kg of ice at 0C to 1 kg...
How much heat is needed to convert 1 kg of ice at 0C to 1 kg of water vapor at 100C?
How much heat(in kJ) is required to convert a 20g ice cube at -15 degrees C...
How much heat(in kJ) is required to convert a 20g ice cube at -15 degrees C into water vapor at 100 degrees C?
how much heat is needed to change 0.5 kg of ice at -20°C into steam of...
how much heat is needed to change 0.5 kg of ice at -20°C into steam of 120°?
I have 1.2 kg of ice at 0oC. How much heat is required to convert this...
I have 1.2 kg of ice at 0oC. How much heat is required to convert this ice to 100oC steam? options:
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT