Question

A .350 kg of ice is initially at temperature of -12 C. How much heat is...

A .350 kg of ice is initially at temperature of -12 C. How much heat is required to melt two-third the mass of the ice only?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Q = mcT

here, meting the ice means we need to first bring the temperature from -12 C to 0 C then change the phase to water.

It is very obvious that the whole mass of ice will go to 0 C but only 2/3 of it will melt.

_______________

so,

Q = mcT + mLf

where, Lf is heat of fusion

c is specific heat of ice = 2090 J / Kg C

so,

Q = 0.350 * 2090 * 12 + 0.350 * 3.33e5 * 2/3

Q = 8778 + 77700

Q = 86478 J

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 60 kg block of ice begins at -60 degrees the specific heat of ice is...
A 60 kg block of ice begins at -60 degrees the specific heat of ice is 2090 j/(kg)C. The latent heat of fusion of water is 3.3 x 10^5 and the latent heat of vaporization is 2.3 x 10^6 J/kg. How much energy is required to heat the ice to 0 degrees Celcius (melting point)? How much energy is required to heat the ice from -50C to the melting point and melt the ice? How much energy is required to...
An open container holds ice of mass 0.530 kg at a temperature of -17.7 ∘C ....
An open container holds ice of mass 0.530 kg at a temperature of -17.7 ∘C . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 770 J/minute . The specific heat of ice to is 2100 J/kg⋅K and the heat of fusion for ice is 334×103J/kg. How much time tmelts passes before the ice starts to melt? From the time when the heating begins, how much time trise does it...
How much heat is required to convert 5.0 kg of ice from a temperature of -...
How much heat is required to convert 5.0 kg of ice from a temperature of - 10 C to water vapor at a temperature of 220 F?
An ice bag containing 0°C ice is much more effective in absorbing heat than one containing...
An ice bag containing 0°C ice is much more effective in absorbing heat than one containing the same amount of 0°C water. (a) How much heat (in J) is required to raise the temperature of 0.800 kg of water from 0°C to 32.0°C?   J (b) How much heat (in J) is required to first melt 0.800 kg of 0°C ice and then raise its temperature?   J (c) Explain how your answers support the contention that the ice is more effective....
How much heat is needed to melt 16.6 kg of lead that is initially at 19.5°C?
How much heat is needed to melt 16.6 kg of lead that is initially at 19.5°C?
An open container holds ice of mass 0.595 kg at a temperature of -10.3 ∘C ....
An open container holds ice of mass 0.595 kg at a temperature of -10.3 ∘C . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 870 J/minute . The specific heat of ice to is 2100 J/kg⋅K and the heat of fusion for ice is 334×103J/kg. How much time tmelts passes before the ice starts to melt? From the time when the heating begins, how much time trise does it...
1A: How much heat would it take to melt a 9 kg block of ice?   ...
1A: How much heat would it take to melt a 9 kg block of ice?    _________ kJ 1B: How much heat is required to convert 175 g of ice at -4°C to water at 4°C?    _________ cal 1C: What is the change in length of a metal rod with an original length of 6 m, a coefficient of thermal expansion of 0.00002/°C, and a temperature change of 24°C? __________ mm 1D: A steel railroad rail is 26.0 m...
A 1.0 kg block of ice is initially at a temperature of -5°C. (a) If 5.8...
A 1.0 kg block of ice is initially at a temperature of -5°C. (a) If 5.8 ✕ 105 J of heat are added to the ice, what is the final temperature of the system? ____ °C (b) Suppose the amount of heat added to the ice block is increased by a factor of 4.6. By what factor must the mass of the ice be increased if the system is to have the same final temperature?
A 1.1 kg block of ice is initially at a temperature of -5°C. (a) If 5.3...
A 1.1 kg block of ice is initially at a temperature of -5°C. (a) If 5.3 ✕ 105 J of heat are added to the ice, what is the final temperature of the system? °C (b) Suppose the amount of heat added to the ice block is increased by a factor of 1.3. By what factor must the mass of the ice be increased if the system is to have the same final temperature?
How much heat is required to convert 5.0 kg of ice from a temperature of -...
How much heat is required to convert 5.0 kg of ice from a temperature of - 10 0C to water vapor at a temperature of 220 degrees F?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT