Question

Question1: If 2.72 kJ of heat are supplied to 2.4 × 102 g of water at...

Question1:

If 2.72 kJ of heat are supplied to 2.4 × 102 g of water at 25 °C, what is the final temperature of the water?

Question 2:

Compute the heat of fusion from these data. 21.08 kJ will change  0.33 kg of the solid at 18.5 oC to 327 o C., the melting point. Specific heat capacity of solid :0.129 KJ/KgK.

Give your answer as a positive number.

please solve both, I need them!!!!

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Cheers

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
How much heat is required to convert solid ice with a mass of 760 g at...
How much heat is required to convert solid ice with a mass of 760 g at a temperature of -16.0 °C to liquid water at a temperature of 76.5 °C? The specific heat of ice is cice = 2100 J/kgK, the specific heat of water is cwater = 4186.8 J/kgK, and the heat of fusion for water is Lf = 334 kJ/kg.
How much heat is required to convert solid ice with a mass of 870 g and...
How much heat is required to convert solid ice with a mass of 870 g and at a temperature of -22.5 °C to liquid water at a temperature of 79.0 °C? (The specific heat of ice is cice = 2100 J/kgK, the specific heat of water is cwater = 4186.8 J/kgK, and the heat of fusion for water is: Lf = 334 kJ/kg.)
If 133.2 kJ of heat are added to 5.80 × 102 g of water at 22.0°C,...
If 133.2 kJ of heat are added to 5.80 × 102 g of water at 22.0°C, what is the final temperature of the water? Specific heat of water at 1.00 atm and 20.0°C is 4.186 kJ/kg·K.
How much heat is required to convert solid ice with a mass of 605 g at...
How much heat is required to convert solid ice with a mass of 605 g at a temperature of -22.5 °C to liquid water at a temperature of 65.0 °C? The specific heat of ice is cice = 2100 J/kgK, the specific heat of water is cwater = 4186.8 J/kgK, and the heat of fusion for water is Lf = 334 kJ/kg. (in J)
1. If 121.4 kJ of heat are added to 6.10 × 102 g of water at...
1. If 121.4 kJ of heat are added to 6.10 × 102 g of water at 22.0°C, what is the final temperature of the water? Specific heat of water at 1.00 atm and 20.0°C is 4.186 kJ/kg·K. (Refer to Table 14.1.) 2. It takes 880 J to raise the temperature of 350 g of lead from 0°C to 20.0°C. What is the specific heat of lead? 3. A 4.00-kg steel ball at 27.3°C is dropped from a height of 10.8...
1- How much heat is required to convert solid ice with a mass of 860 g...
1- How much heat is required to convert solid ice with a mass of 860 g at a temperature of -19.5 °C to liquid water at a temperature of 40.5 °C? The specific heat of ice is cice = 2100 J/kgK, the specific heat of water is cwater = 4186.8 J/kgK, and the heat of fusion for water is Lf = 334 kJ/kg. 2- A large steam pipe is covered with a 4.00 cm thick insulating material with a thermal...
What amount of thermal energy (in kJ) is required to convert 220 g of ice at...
What amount of thermal energy (in kJ) is required to convert 220 g of ice at -18 °C completely to water vapour at 248 °C? The melting point of water is 0 °C and its normal boiling point is 100 °C. The heat of fusion of water is 6.02 kJ mol-1 The heat of vaporization of water at its normal boiling point is 40.7 kJ mol-1 The specific heat capacity of ice is 2.09 J g-1 °C-1 The specific heat...
What amount of thermal energy (in kJ) is required to convert 216 g of ice at...
What amount of thermal energy (in kJ) is required to convert 216 g of ice at -30 °C completely to water vapour at 198 °C? The melting point of water is 0 °C and its normal boiling point is 100 °C. The heat of fusion of water is 6.02 kJ mol-1 The heat of vaporization of water at its normal boiling point is 40.7 kJ mol-1 The specific heat capacity of ice is 2.09 J g-1 °C-1 The specific heat...
How much heat energy is required to convert 32.1 g of solid iron at 26 °C...
How much heat energy is required to convert 32.1 g of solid iron at 26 °C to liquid iron at 1538 °C? The molar heat of fusion of iron is 13.8 kJ/mol. Iron has a normal melting point of 1538 °C. The specific heat capacity of solid iron is 0.449 J/g·°C.
15.48 g of nickel sulfate (MM 154.75 g/mol) was dissolved in 100.00 mL of water. The...
15.48 g of nickel sulfate (MM 154.75 g/mol) was dissolved in 100.00 mL of water. The initial temperature was 20.00 oC, and the final temperature was 25.06 oC, The specific heat capacity of the reaction mixture was 4.18J g- oC-. What is the heat transferred, Q? A. 2442 J B. 2115 J C. 327 J D. 418 J I got 327 J, but it gets marked as wrong. Why? 15.48 g of nickel sulfate (MM 154.75 g/mol) was dissolved in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT