Question

Aluminum and copper pieces at 20 ° C each individually heated and melted at 0.5 kg....

Aluminum and copper pieces at 20 ° C each individually heated and melted at 0.5 kg. Which metal needed to give higher heat? How many times bigger?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

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
An unknown metal of mass 0.280 kg is heated to 160.0°C and dropped in an aluminum...
An unknown metal of mass 0.280 kg is heated to 160.0°C and dropped in an aluminum calorimeter of mass 0.250 kg that contains 0.170 kg of water at 30°C. The calorimeter, water, and unknown metal have a final temperature of 46.0°C. Find the specific heat of the unknown metal. Hint: you need the specific heat of water and aluminum. Use units of [J/(kg.K)] and the values in your book for the specific heat.
20. A 5 kg block of aluminum is heated from 11?C to 99?C at atmospheric pressure....
20. A 5 kg block of aluminum is heated from 11?C to 99?C at atmospheric pressure. Assume the density of aluminum is 2700 kg/m3 and the thermal coefficient of expansion is 2.4 × 10?5 ( ?C)?1 . a. Find the work done by the aluminum. Answer in units of J. b. Find the amount of energy transferred to it by heat. Assume the specific heat of aluminum is 900 J/kg · ? C. Answer in units of J. c. Find...
A block of aluminum with m = 0.5 kg, T = 20 0C is dropped into...
A block of aluminum with m = 0.5 kg, T = 20 0C is dropped into a reservoir at a temperature 90 0C. Calculate (a) the change in stored energy, (b) the amount of heat transfer, (c) the change in entropy, (d) the amount of entropy transfer by heat, and (e) the entropy generation in the system's universe during the heat transfer process
A 4.5 kg block of aluminum is heated from 29?C to 97?C at atmospheric pressure. Find...
A 4.5 kg block of aluminum is heated from 29?C to 97?C at atmospheric pressure. Find the work done by the aluminum. Assume the density of aluminum is 2700 kg/m3 and the thermal coefficient of expansion is 2.4 × 10?5 ( ?C)?1 . Answer in units of J Find the amount of energy transferred to it by heat. Assume the specific heat of aluminum is 900 J/kg · ? C. Answer in units of J. Find the increase in its...
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°?
Copper melts at 1085 °C. The specific heat of copper is 387 J/(kg· °C). The latent...
Copper melts at 1085 °C. The specific heat of copper is 387 J/(kg· °C). The latent heat of fusion of copper is 20.7×104 J/kg. How much heat is needed to raise the temperature of 0.050 kg of copper from 23 °C to molten copper at 1085 °C?  
1. A 74.20 kg piece of copper metal is heated from 21.5°C to 335.1°C. Calculate the...
1. A 74.20 kg piece of copper metal is heated from 21.5°C to 335.1°C. Calculate the heat absorbed (in kJ) by the metal. 2. A sheet of gold weighing 10.9 g and at a temperature of 17.3°C is placed flat on a sheet of iron weighing 23.9 g and at a temperature of 52.2°C. What is the final temperature of the combined metals? Assume that no heat is lost to the surroundings. (Hint: The heat gained by the gold must...
A 0.250-kg aluminum bowl holding 0.800 kg of soup at 26.2°C is placed in a freezer....
A 0.250-kg aluminum bowl holding 0.800 kg of soup at 26.2°C is placed in a freezer. What is the final temperature if 428 kJ of energy is transferred from the bowl and soup? Assume the soup has the same thermal properties as that of water, the specific heat of the liquid soup is 1.00 kcal/(kg · °C), frozen soup is 0.500 kcal/(kg · °C), and the latent heat of fusion is 79.8 kcal/kg. The specific heat of aluminum is 0.215...
A 200 g aluminum calorimeter can contain 500 g of water at 20 C. A 100...
A 200 g aluminum calorimeter can contain 500 g of water at 20 C. A 100 g piece of ice cooled to -20 C is placed in the calorimeter. - Find the final temperature of the system, assuming no heat losses. (Assume that the specific heat of ice is 2.0 kJ/kg K) - A second 200 g piece of ice at -20 C is added. How much ice remains in the system after it reaches equilibrium? - Would your answer...
A calorimeter made of copper (c=0.0923 cal/g-C°) of mass 300 g contains 450 grams of water....
A calorimeter made of copper (c=0.0923 cal/g-C°) of mass 300 g contains 450 grams of water. The container is initially at room temperature, 20°C. A 1 kg block of metal is heated to 100°C and placed in the water in the calorimeter. The final temperature of the system is 40°C. What is the specific heat of the metal?    A. 0.159 kcal/kg-C °    B. 0.591 kcal/kg-C° C. 0.519 kcal/kg-C° D. 0.915 kcal/kg-C°  
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT