i found the average specific heat of a metal through an experiment it is 200. my only problem now is identifying it. i have tried many website but can't find anything useful please make some suggestions
Just revising for my practical physics exam tomorrow and got stuck on this! not sure if its correct, just annpyed me that i was unsure!
Homework Statement
A vending machine for serving hot drinks has a tank of capacity 7.5 litres, and the manufactuurers say that 45 cups of hot water (at 99o...
When a 35 gram piece of some metal at 100°C is placed in water, it loses 775 calories of heat while cooling to 30°C. Calculate the specific heat capacity of this metal.
Q = mc(DELTA)T
T = 70 degrees C
m = 35 g
Q = 775 cal ??
When i plugged it in i got 0.34 but the program said it...
Homework Statement
How much milk at 11 degrees Celcius was added to 0.16 kg of coffee at 91 degrees Celcius if the final temperature is 76.8 degrees Celcius?
Homework Equations
Well my teacher explained how to rearrange cm∆T = cm∆T to somehow come up with an equation to solve for the...
Homework Statement
How much ice was added to a 0.75 kg jug of lemonade at 15 degrees celcius if the final temperature of the jug is 8 degrees celcius? (Assume the lemonade has the specific heat capacity of water.)
Homework Equations
Q = cm∆T
The Attempt at a Solution
Well I think I...
im doing a calorimeter experiment and need to find the specific heat capacity of the calorimeter, but always gets a negative answer.
Initial temp = 23 C
Final temp = 60 C
Change in temp = 37 C
Mass of calorimeter = 0.027645kg
Mass of water = 0.1kg
Specific heat capacity water = 4200...
I've read that:
specific heat capacity at constant pressure = dU-W / m. dT
dU = change in internal energy
W = work done
m = mass of gas
dT = change in temperature
-----------------------------------
However, shouldn't the right hand side equate to specific heat capacity at...
Homework Statement
The diagram below shows a one-dimensional row of 5 microscopic objects each of mass 410-26 kg, connected by forces that can be modeled by springs of stiffness 26 N/m (so each object can be modeled as if it were connected to a single spring of effective stiffness 4ks = 104 N/m...
Homework Statement
a 4kg iron hammer is initally 700 degree celcius is droppped into a bucket containing 20kg of water at 25degree celcius. what is the final temperture
Homework Equations
q=mc(delta)T
The Attempt at a Solution
m1=4kg
m2=20kg
T1=700=973K
T2=25=298
i know...
Homework Statement
When you take a bath, how many kilograms of hot water (49°C) must you mix with cold water (12°C) so that the temperature of the bath is 36°C? The total mass of water (hot plus cold) is 191 kg. Ignore any heat flow between the water and its external surroundings.
Temperature...
I am stuck on my Physics work. I have already completed the first 10 questions but I do not understand these, can someone please help me with a method of how to find out.
1. When 0.25kg or water at 70C is mixed with water at 20C the final temperature of the mixture is 30C. find the mass of...
is there another way of considering the specific heat capaciaty of a material (many gas) other than with respect to the number of degrees of freedom with gives a constant out put for all monocrmatic gases for all temperature and pressure.
For a monocromatic gas c=(3/2)*n*R*m
where m = mass...
This is not a homework question, just a question about physics that seems too basic to post in the main physics discussion forum. Please let me know if it is misplaced.
Temperature is average molecular kinetic energy. Is it therefore correct to say that a material's specific heat capacity...
Homework Statement
If 100 mL test of water at 60°C is added to 100 mL of water at 20°C, then the final temperature of the water will be?
Homework Equations
c=Specific Heat Capacity
Specific Heat Capacity of water = 4186
Quantity of Heat Energy=mass * Specific Heat Capacity of...
What is the specific heat capacity of HCl when given the following information:
Volume: 50mL
Initial Temp: 20 *C
Final Temp: 26* C
What is the heat measurement in Joules as well?
What is the specific heat capacity of HCl when given the following information:
Volume: 100mL
Initial Temp...
[SOLVED] Specific heat capacity (Calorimetry)
Homework Statement
When a driver brakes an automobile, friction between the brake disks and the brake pads converts part of the car's translational kinetic energy to internal energy. If a 1500 kg automobile traveling at 32 m/s comes to a halt...
Homework Statement
I'm having trouble with the following two problems:
1. A jar of tea is placed in the sunlight until it reaches an equilibrium temperature of 32*C. In an attempt to cool the liquid, which has a mass of .180kg, .112 kg of ice at 0*C is added. At the time at which the...
Hi all,
I am currently in the process of writing up my AS coursework investigation of finding the specific heat capacity of Aluminium, and am a bit stuck at explaining some of my results.
My results for the SHC of Aluminium are lower than the published values.
My value: 700.93 JKgC...
Homework Statement
My teacher instructed my class to conduct an experiment to determine the specific heat capacity of Brass, Copper, Aluminium, and Steel. The following setup was used:
http://mypage.bluewin.ch/gutter/diagram1.JPG
The following method was used:
1.) The electric heater...
Homework Statement
The temperature of a brass cylinder of mass 100g was raised to 100 degree celsius and then transferred to a thin aluminium can of negligible heat capacity. The aluminium can contained 150g of paraffin at 11 degree celcius. If the final steady temperature after stirring was...
help! need help here because my answers are different from the answer on the book. just wanted to make sure that i am right. these are the problems:
1. How much heat is needed tor aise the temperature by 10 deg celsius of 5 kg og a substance of specific heat capacity 300J/kg deg celsius? what...
I am designing a cracking furnace to crack Ethylene Dichloride. the furnace is at around 500 C and 2 M Pa. To perform an energy balance I need the specific heat capacity of the EDC at the aforementioned temperature and pressure. I can only find it at standard conditions and can find no way of...
I am a beginner in thermodynamics; all I know is how heat is transferred, rotational/translational/vibrational/internal energy, and the law of conservation of energy. I recently learned about specific heat capacity, and I was wondering: why is it that different substances convert varying ratios...
Hi.
Was wondering if anyone knew where i could find a list of the metals and their specific heat capacities.
All i have found is this one:
http://www.engineeringtoolbox.com/specific-heat-metals-d_152.html
but i would like one that deals with all the metals
Thanks
I'm in a situation where I need to adjust for heat loss, and am at a loss because my "comprehensive" data booklet isn't comprehensive enough. Could anyone please look up the specific molar heat capacity of cyclohexanone for me? Thanks in advance.
This questions puzzles me:
Which has a larger specific heat capacity (shc) : solid, liquid or gas.
We can assume that it is of the same matter. Why?
I have checked the numbers. Only water has it on all three states. Liq water has the highest, while that of ice and steam is about the same...
I have to write about the applications/uses of specific heat capacity.
I know what SHC is- the amount of heat required to raise the temperature of 1kg of substance by 1°C/ 1K.
But I have no idea how that can be applied anywhere or anything..
I've searched the entire internet for the...
Hey. Here is the question i was given:
"When you hold your hand in the air in a hot oven, it takes a while before it starts to burn, but if you touch a cake tin in the oven, it burns almost instantly. Why?"
It has to do with the lower specific heat capacity of the tin, which apparently...
Hey. Here is the question i was given:
"When you hold your hand in the air in a hot oven, it takes a while before it starts to burn, but if you touch a cake tin in the oven, it burns almost instantly. Why?"
It has to do with the lower specific heat capacity of the tin, which apparently...
This is CALORIMETRY PROBLEM.
A 0.050kg metal bolt is heated to an unknown initial temperature. It is then dropped into a beaker containing 0.15kg of water with an initial temperature of 21.0 C. The bolt and metal then reach a final temperature of 25.0 C. If the metal has a specific heat...
Hey ya. I need some help with specific heat capacity. :cry: Does anyone know where i can find a table of specific heat capacity values? :redface: Also what are the units of specific heat capacity? do you have to measure the temperature in kelvin or degrees? Plz help, o:) Thanx
:confused: Hello I am a high school student and I am doing a Science Fair project on... something... anyways, I really need to know the Specific Heat Capacity of Sodium Acetate please, if anyone knows can you help me, or at least show me some websites, I have searched on Google and in textbooks...
Hi,
I have decided for my advanced level coursework to investigate whether the specific heat capacity of a few metals affects their resistivity in any way. (prob in a circuit)
I am at the stage of planning and i have less than a week to complete this stage.
I have a few ideas about measuring...
I'm having a hard time getting my hear around this question. Help would be appreciated as my revision books are not helping. I'm not looking for answers (would be helpful) - just help that will actually be of use to me if I get this question in the real exam.
Two physics teachers are getting...
Does the specific heat capacity of an object affect the rate of transfer of energy from an object to another?
For instance, alcohol has a lower specific heat capacity than water.
If they are both at 50 degree Celsius and poured into a beaker containing water of 20 degree Celsius respectively...
Hi, could someone help me get started on this problem, I am having a lot of difficulty comprehending these types of problems. THanks for your help guys.
A cup is made of an experimental material that can hold hot liquids without significantly increasing its own temperature. THe .79 kg cup...
Hello, Faizan Here
Can anyone show ne how to derive the formula of specific heat capacity pls.? Also i need the derivation of the formula of magnification power of a lens? Thanks in advance to anyone who helps me.
Hello again!
I'm not sure if this is difficult but I believe that everyone have experienced this... I can't explain it... =) Sorry about that.
Anyway, here's my problem...
At noon, when the sand in the beach is already hot, why does the water still feel cold? Early in the night...
Specific Heat Capacity help!
This question is simple but I'm a little confused, it involves beach breezses, temperature, and convection.
Sand on the beach get much hotter than water on sunny day so air above sand heats up and rise due to convection then cold air moves in from over water...
Hello,
150kcal of heat raises the temp of 2.0kg of material by 400 degrees F. Whats the materials specific heat capacity?
I cam up with 1.35 kcal/kg degrees C. is this correct?
Thanks!
Dx :wink: