Question

Iron has a molar heat of about 25 J mol-K. Calculate the beat capacity of a...

Iron has a molar heat of about 25 J mol-K. Calculate the beat capacity of a block of iron whose volume is 1 m. Compare the result with that for the same volume of water. (The relative atomic mass of iron is 55.845 and its density is 7.86 x 10 kg m)

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
1- The molar mass and molar heat capacity of aluminum is 27.0 g/mol and 24.3 J/(mol...
1- The molar mass and molar heat capacity of aluminum is 27.0 g/mol and 24.3 J/(mol K), respectively. If a 27.0-g Al sample, at 300. K, absorbed 168 J of heat, what is its final temperature? 2- The molar mass and molar heat capacity of aluminum is 27.0 g/mol and 24.3 J/(mol K), respectively. If a 27.0-g Al sample, at 300. K, absorbed 152 J of heat, what is its final temperature? 3- 100. g water, at 20 C, and...
A 78 kg block of Iron (Specific Heat Capacity 348 J/kg.K) at temperature T kelvin is...
A 78 kg block of Iron (Specific Heat Capacity 348 J/kg.K) at temperature T kelvin is inserted into 5 kg of water (Specific Heat Capacity 4005 J/kg.K and initial temperature is 300 K). Final temperature of the mixture is 308 K. Assuming no heat loss to surrounding calculate the initial temperature of the iron block: _______ K
(a) The molar heat capacity of lead is 26.44 J K-1 mol-1. How much energy must...
(a) The molar heat capacity of lead is 26.44 J K-1 mol-1. How much energy must be supplied (by heating) to 100 g of lead to increase it’s temperature by 10.0°C? (b) The molar heat capacity of sodium is 28.24 J K-1 mol-1. What is its specific heat capacity? (c) The specific heat capacity of copper is 0.384 J K-1 g-1. What is its molar heat capacity?
#21. (a) What is the molar heat capacity of liquid water? 75.2 J/mol oC (this one...
#21. (a) What is the molar heat capacity of liquid water? 75.2 J/mol oC (this one is correct just need help with B and C) (b) What is the heat capacity of 8.58 mol of liquid water? ___kJ (c) How many kJ of heat are needed to raise the temperature of 3.02 kg of water from 35.9 oC to 74.9 oC? ___kJ
Q 4. A metal block of heat capacity 600 J K-1 loses 1 M.J of heat...
Q 4. A metal block of heat capacity 600 J K-1 loses 1 M.J of heat energy to its surroundings. Find the decrease in temperature. Q5. One mega joule of heat energy is supplied to a piece of iron and raises its temperature from 20?C to 200?C. Find the mass of the piece of iron.( Specific heat capacity of iron =451Jkg-1K-1 Q6. 30grams of water at 100?C are added to 100 grams of water at 20?C. If there is no...
The specific heat capacity of aluminium is C aluminium= 900 J/kgC, and that of iron is...
The specific heat capacity of aluminium is C aluminium= 900 J/kgC, and that of iron is C iron=450J/kgC. Samples of pure aluminium with mass M aluminium =50 kg and iron with mass M iron= 100 kg are prepared, along with a number of fancy boxes through wich heat does not flow. At an initial time, both the aluminium and iron samples are at T initial= 20C. e)Determine the effective specific heat capacity of the combined samples. f)ONe half of the...
In a calorimetry experiment to determine the specific heat capacity of a metal block, the following...
In a calorimetry experiment to determine the specific heat capacity of a metal block, the following data was recorded: Quantity Mass of the metal block 0.50 kg Mass of empty calorimeter + Stirrer 0.06 kg Mass of calorimeter + stirrer + water 0.20 kg Mass of water 0.14 kg Initial Temperature of metal block 55.5 ⁰C Initial Temperature of water and calorimeter 22 ⁰C Final Temperature of block- water system 27.4 ⁰C Take the specific heat capacity of water to...
A 2.50-kg block of hot iron (cFe = 0.45 J/g K; Tin = 300. oC) is...
A 2.50-kg block of hot iron (cFe = 0.45 J/g K; Tin = 300. oC) is dropped in cold water (Tin = 20 oC) to cool quickly. 1) how much heat needs to be absorbed to cool the iron block to 25 oC? A) 309 J B) 309 kJ C) 618 J D) 618 kJ E) None of the above 2) How much cold water will be needed? A) 14.8 g B) 14.8 kg C) 14.8 m3 D) 14,800 L...
150 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum...
150 grams of boiling water (temperature 100°C, heat capacity 4.2 J/gram/K) are poured into an aluminum pan whose mass is 970 grams and initial temperature 25°C (the heat capacity of aluminum is 0.9 J/gram/K). (a) After a short time, what is the temperature of the water? (b) What simplifying assumptions did you have to make? The thermal energy of the aluminum doesn't change. Energy transfer between the system (water plus pan) and the surroundings was negligible during this time. The...
A poorly engineered system uses He (heat capacity of 12.5 J K-1 mol-1) as a coolant...
A poorly engineered system uses He (heat capacity of 12.5 J K-1 mol-1) as a coolant for a highly exothermic reaction which releases 23.1 kJ of heat. If the volume of the container holding 10 moles of He is fixed, how much does the pressure change in the coolant tube when the He absorbs the released heat? Assume all the heat released by the reaction is absorbed by the He and its initial temperature is 10.0 °C.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT