the heat of fusion office is 334 x 10^3 j/kg. When 50
g of ocean at...
the heat of fusion office is 334 x 10^3 j/kg. When 50
g of ocean at 0 Celsius is added to 160 g of water at 25 Celsius
what is final temperature? C water = 4190 J/kg
Specific heat of ice: 2.09 J/(g⋅∘C
Specific heat of liquid water: 4.18 J/(g⋅∘C)
Enthalpy of fusion: ΔHfus=334J
Enthalpy of vaporization: ΔHvap=2250 J/g
How much heat energy, in kilojoules, is required to convert
47.0 g of ice at −−18.0 ∘C∘C to water at 25.0 ∘C?
120
g + 18˚ water is in a calorimeter, whose heat capacity is 50 J /
˚C. Clarification is done by calculating what happens when 36 g of
ice of 0 ˚C is added in the calorimeter.
(Answer T = 0 ˚C, remaining approximately 6 g of ice)
1. The latent heat of vaporization of ethanol is 8.46 x 105
J/kg. How many kg of ethanol can be vaporized by 4.52 x 104 J of
heat?
2. 1.82 x 104 J of heat flow into 0.0442 kg of ice at 0C,
causing the ice to melt and then the temperature of the melted ice
to increase. What is the final temperature of the liquid water?
(The specific heat of liquid water is 4186 J/kgC; the latent heat
of...
In an experiment, 300 g of aluminum (specific heat of 900
J/kg*K) at 120 Celsius is mixed with 60 g of water at 20 Celsius,
with the mixture thermally isolated. You will need to look up the
specific heat of water. (a) What is the equilibrium temperature?
(b) What is the entropy change for the aluminum block? (c) What is
the entropy change for the water? (d) What is the entropy change
for the aluminum-water system?
Water's heat of fusion is 80. cal/g , its specific heat is
1.0calg⋅∘C, and its heat of vaporization is 540 cal/g . A canister
is filled with 340 g of ice and 100. g of liquid water, both at 0
∘C . The canister is placed in an oven until all the H2O has boiled
off and the canister is empty. How much energy in calories was
absorbed? Express your answer to two significant figures and
include the appropriate units
The value of specific heat for copper is 390 J/kg⋅C∘, for
aluminun is 900 J/kg⋅C∘, and for water is 4186 J/kg⋅C∘. What will
be the equilibrium temperature when a 225 g block of copper at 245
∘C is placed in a 155 g aluminum calorimeter cup containing 835 g
of water at 14.0 ∘C ? Express your answer using three significant
figures.
The value of specific heat for copper is 390 J/kg⋅C∘, for
aluminun is 900 J/kg⋅C∘, and for water is 4186 J/kg⋅C∘.
Part A
What will be the equilibrium temperature when a 275 g block of
copper at 245 ∘C is placed in a 135 g aluminum calorimeter cup
containing 855 g of water at 15.0 ∘C?
Express your answer using three significant figures.'
T= ∘C
1. A 5.88 kg piece of granite with a specific heat of 0.803 J
g-1 °C-1 and a temperature of 85.1 °C is
placed into 2.00 L of water at 19.0 °C. When the granite and water
come to the same temperature, what will the temperature be?
2. The combustion of methane (the chief component of natural
gas) follows the equation:
CH4(g) + 2O2(g) →
CO2(g) + 2H2O(g)
∆H° for this reaction is -802.3 kJ. How many grams of methane...
Water's heat of fusion is 80. cal/g , and its specific heat is
1.0calg⋅∘C .
Some velomobile seats
have been designed to hold ice packs inside their cushions. If you
started a ride with ice packs that held 1100 g of frozen water at 0
∘C , and the temperature of the water at the end of the ride was 32
∘C , how many calories of heat energy were absorbed?
Express your answer to two significant figures and include...
The heat of fusion of ice is 80 cal/g at 0 °C and 1 atm, and the
ratio of the specific volume of
water to that of ice is 1.000:1.091. The saturated vapor
pressure and the heat of vaporization of
water at 0 °C are 6.026 × 10-3 atm and 600 cal/g, respectively.
Estimate the triple point of water
using these data