What is the final temperature of the water mixture that results
when 40 g of ice that is initially at -10 C is added to 200 g of
water that is initially at 60 C? (The specific heat of ice is 0.5);
the heat of fusion of water is 80 cal
IP A 1.4-kg block of ice is initially at a
temperature of -5.0 ∘C.
Part A
If 2.5×105 J of heat are added to the ice, what is
the final temperature of the system?
Part B
Find the amount of ice, if any, that remains.
The initial temperature of 140 g of ice is −22°C. The specific
heat capacity of ice is 0.5 cal/g·C° and waters is 1 cal/g·C°. The
latent heat of fusion of water is 80 cal/g.
a. How much heat is required to raise the ice to 0°C?
b. How much additional heat is required to completely melt the
ice after it has reached 0°C?
c. How much additional heat is required to heat the water
(obtained by melting the ice) to...
A 50-g cube of ice, initially at 0.0°C, is dropped into 200 g of
water in an 80-g aluminum container, both
initially at 30°C. What is the final equilibrium temperature?
(Specific heat for aluminum is 900 J/kg×°C,
the specific heat of water is 4 186 J/kg×°C, and
Lf = 3.33 ´ 105 J/kg.)
For a constant-volume stoichiometric propane-air mixture
initially at 298K, determine the adiabatic flame temperature and
final pressure assuming constant specific heats evaluated at
298K.
Calculate the final temperature, in degrees Celsius, ∘C, for
each of the following with n and V constant. A sample of air at 35
∘C and 780 mmHg is cooled to give a pressure of 640 mmHg . Express
your answer to two significant figures and include the appropriate
units.
For the reaction 3A(g)+3B(g)⇌C(g) Kc = 30.2 at a temperature of
377 ∘C .
Calculate the value of Kp. Express your answer numerically. Kp
=
Part B For the reaction X(g)+3Y(g)⇌3Z(g) Kp = 2.06×10−2 at a
temperature of 357 ∘C .
Calculate the value of Kc. Express your answer numerically. Kc
=
A. For the reaction
3A(g)+3B(g)⇌C(g)
Kc = 36.0 at a temperature of 191 ∘C .
Calculate the value of Kp . Kp = __________
B. For the reaction
X(g)+3Y(g)⇌2Z(g)
Kp = 1.47×10−2 at a temperature of 19 ∘C
.
Calculate the value of Kc .
Express your answer numerically. Kc= _______