How much heat energy in joules must be added to 78 grams of water initially at...
How much heat energy in joules must be added to 78 grams of water initially at 23 degrees Celsius if it ends up at 53 degrees Celsius.
Remember that the specific heat capacity of water = 4186 J/ (kg oC) or 1 calorie / (g oC)
Homework Answers
Add Answer to:
How much heat energy in joules must be added to 78 grams of
water initially at...
The specific heat of water is 4186 J/kg C. How much does the internal energy of...
The specific heat of water is 4186 J/kg C. How much does the internal energy of 300 grams of water change as it is heated from 23 to 46 degrees C? Assume that the volume is constant. Internal energy change = Number Joules
155 grams of ice at -10.0 degrees celsius is added to 1.17 kg of water at...
155 grams of ice at -10.0 degrees celsius is added to 1.17 kg of water at 70.0 degrees celsius and mixed together in thermal isolation until they come to equilibrium. The specific heat of ice is 2010 J/kgC. The specific heat of water is 4186 J/kgC. The latent heat of fusion for water is 3.34x10^5 J/kg. The latent of vaporization for water is 2.26x10^6 J/kg. What is the final equilibrium. The answer is 51.9 celsius. I just need the steps...
you decided to investigate how much energy it would take to get solid acetone to gaseous...
you decided to investigate how much energy it would take to get
solid acetone to gaseous acetone. So assuming you took 125 g of
-100 degree Celsius solid acetone and heated it 56 degree Celsius
gaseous acetone, how many joules of energy would be required to do
this? Acetone has a melting point of -95 degree Celsius and a
boiling point of 56 degrees Celsius. The heat of fusion (melting)
is 98 j/g and the heat of vaporization is 538.9...
How much heat (in joules) is required to raise the temperature of 34.0 kg of water...
How much heat (in joules) is required to raise the temperature of 34.0 kg of water from 24 ∘C to 89 ∘C? The specific heat of water is 4186 J/kg⋅C∘. Express your answer using two significant figures.
What mass in grams of aluminum fins could 2423 Joules of energy heat from 13.14 degrees...
What mass in grams of aluminum fins could 2423 Joules of energy heat from 13.14 degrees Celsius to 23.05 degree Celsius? Aluminum has a specific heat of 0.897 Joules(g times degrees Celsius)
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block...
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C? 2) A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C. What is the specific heat of the substance? 3) A 70.0-g piece of metal at 80.0 °C is placed...
QUESTION 43 How much energy does it take to heat 5.00 g of solid water from...
QUESTION 43 How much energy does it take to heat 5.00 g of solid water from 10°C to 0°C/ Specific heats: ice - 2090 J/xg°C, water - 4186 kg", water vapor - 2010 kyºc. A. 104,500) B. 209.3) C. 104.5) OD. 10.45) QUESTION 44 How much energy does it take to heat 5.00 g of liquid water from 0°C to 40°C? Specific heats: ice - 2090 y gºc, water - 4186 kg", water vapor - 2010/kg". O A 837,200) OB....
1. How much energy is need to change 125 grams of water from 25 oC to...
1. How much energy is need to change 125 grams of water from 25 oC to 98 oC ? 2. How much energy is given off when 200 grams of ethanol are cooled from 65 oC to 13 oC? Specific Heat of ethanol is 2.46 J/g oC. 3. The heat capacity of iron is 0.444 J/goC. What is the final temperature when 20 grams of iron wire at 80 oC losses 577.2 J? 4. A 56.0 grams of copper cylinder...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00...
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00 g of water from 300.0 K to 365.0 K. (Remember that one degree of Celsius contains the same amount of energy as one Kelvin.) 2. Determine the energy, in Joules, released as 1.00 kilogram of water cools from 72.0°C to 30.0°C. 3. 25.0 g of mercury are heated from 25.0° C to 155.0°C and absorbs 455 joules of heat in the process. Calculate the...
How much heat must be removed from 456 g of water at 25.0 degree C to...
How much heat must be removed from 456 g of water at 25.0 degree C to change it into ice at -10.0 degree C? The specific heat of ice is 2090 J/kg K. the latent heat of fusion of water is 33.5 times 10^4 J/Kg, and the specific heat of water is 4186 J/kg K.
The specific heat of water is 4186 J/kg C. How much does the internal energy of 300 grams of water change as it is heated from 23 to 46 degrees C? Assume that the volume is constant. Internal energy change = Number Joules
you decided to investigate how much energy it would take to get
solid acetone to gaseous acetone. So assuming you took 125 g of
-100 degree Celsius solid acetone and heated it 56 degree Celsius
gaseous acetone, how many joules of energy would be required to do
this? Acetone has a melting point of -95 degree Celsius and a
boiling point of 56 degrees Celsius. The heat of fusion (melting)
is 98 j/g and the heat of vaporization is 538.9...
Homework Name: 1) How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C? 2) A piece of unknown substance weighs 44.7 g and requires 2110 J to increase its temperature from 23.2 °C to 89.6 °C. What is the specific heat of the substance? 3) A 70.0-g piece of metal at 80.0 °C is placed...
QUESTION 43 How much energy does it take to heat 5.00 g of solid water from 10°C to 0°C/ Specific heats: ice - 2090 J/xg°C, water - 4186 kg", water vapor - 2010 kyºc. A. 104,500) B. 209.3) C. 104.5) OD. 10.45) QUESTION 44 How much energy does it take to heat 5.00 g of liquid water from 0°C to 40°C? Specific heats: ice - 2090 y gºc, water - 4186 kg", water vapor - 2010/kg". O A 837,200) OB....
Energy/Specific Heat (q=mcAT) 1. Determine the energy, in Joules, needed to increase the temperature of 20.00 g of water from 300.0 K to 365.0 K. (Remember that one degree of Celsius contains the same amount of energy as one Kelvin.) 2. Determine the energy, in Joules, released as 1.00 kilogram of water cools from 72.0°C to 30.0°C. 3. 25.0 g of mercury are heated from 25.0° C to 155.0°C and absorbs 455 joules of heat in the process. Calculate the...
How much heat must be removed from 456 g of water at 25.0 degree C to change it into ice at -10.0 degree C? The specific heat of ice is 2090 J/kg K. the latent heat of fusion of water is 33.5 times 10^4 J/Kg, and the specific heat of water is 4186 J/kg K.
Most questions answered within 3 hours.
-
Calculate the equillibrium constent K for a redox reaction that
has E°cell = -.98 V at...
asked 11 minutes ago -
A concave spherical mirror has a radius of curvature of
magnitude 19.6 cm.
(a) Find the...
asked 12 minutes ago -
3. draw a diagram of the magnetic field:
a. around a long straight wire with a...
asked 11 minutes ago -
If you titrated 30.0 mL of 0.1 M HCl with 0.1 M NaOH, indicate
the approximate...
asked 20 minutes ago -
NADH passes electrons into the electron transport chain. List
the carriers that would receive the electrons,...
asked 28 minutes ago -
A cylindrical cable with a resistivity of 1.6x10-8 Ω·m and cross
sectional area of 3x10-5 m^2...
asked 28 minutes ago -
True or False.
A consumer with convex preferences who is indifferent between
the bundles (5,2) and...
asked 31 minutes ago -
A diamond's index of refraction for red light, 656 nm, is 2.410,
while that for blue...
asked 44 minutes ago -
Compare HPLC, SPE, and GC. Identify the differences, the
advantages, and the weaknesses of each method.
asked 46 minutes ago -
Characteristic x-rays emitted by potassium have a wavelength of
0.374 nm. What is the energy of...
asked 48 minutes ago -
there is a function to create two random numbers between 1 and
25 and a function...
asked 1 hour ago -
At a certain temperature, the ?pKp for the decomposition of
H2SH2S is 0.832.0.832.
H2S(g)↽−−⇀H2(g)+S(g)H2S(g)↽−−⇀H2(g)+S(g)
Initially, only...
asked 1 hour ago