100 g of ice at -20°C are mixed with 250 g of water at 20°C in
an insulated calorimeter. What is the final temperature of the
system? How many grams of liquid water and how many grams of ice
will you find after the system equilibrates? find T in degrees C; m
of solid (in grams); m of liquid (in grams)
T=____
ms=____
mliq=____
A 200 g aluminum calorimeter can contain 500 g of water at 20
C. A 100 g piece of ice cooled to -20 C is placed in the
calorimeter.
A) Find the final temperature of the system, assuming no heat
losses. (Assume that the specific heat of ice is 2.0 kJ/kg K)
B) A second 200 g piece of ice at -20 C is added. How much ice
remains in the system after it reaches equilibrium?
C) Would your answer...
A 200 g aluminum calorimeter can contain 500 g of water at 20
C. A 100 g piece of ice cooled to -20 C is placed in the
calorimeter.
Find the final temperature of the system, assuming no heat
losses. (Assume that the specific heat of ice is 2.0 kJ/kg K)
A second 200 g piece of ice at -20 C is added. How much ice
remains in the system after it reaches equilibrium?
Would your answer to part b...
20 liters of water at 20 bar and 100 °C are in a variable volume
container. 56,000 kJ of heat are added to the system at constant
pressure which causes an increase in both temperature and
volume.
Draw a schematic of the process
Write the energy balance for this process and clearly state any
assumptions:
What is the final volume of the container?
How much work in [kJ] is completed? Pay careful attention to
your negative signs!
In one sentence...
(a) What is the total volume of gaseous products, measured at
350°C and 689 torr, when an automobile engine burns 103 g of C8H18
(a typical component of gasoline)? L (b) For part (a), the source
of O2 is air, which is about 78.0% N2, 21.0% O2, and 1.0% Ar by
volume. Assuming all the O2 reacts, but no N2 or Ar does, what is
the total volume of gaseous exhaust?
Consider a solution of 1.00 g of glucose in 100 g of water at
20˚C (where the vapor pressure of pure water is 17.54 torr). For
this problem we will assume the solution behaves ideally.
(a) What is the equilibrium vapor pressure of the
solution?
(b) What is the osmotic pressure of the solution versus pure
water (report it in torr)?
(c) What is the activity of water as a solvent in the
solution?
(d) Now suppose 1.00 g of...
8)The density of gasoline is 730 kg/m3 at 0°C. Its average
coefficient of volume expansion is 9.60 10-4(°C)?1. Assume 1.00 gal
of gasoline occupies 0.003 80 m3. How many extra kilograms of
gasoline would you receive if you bought 10.3 gal of gasoline at
0°C rather than at 16.5°C from a pump that is not temperature
compensated?
9)A mercury thermometer is constructed as shown below. The Pyrex
glass capillary tube has a diameter of 0.003 80 cm, and the bulb...