This question's due date has already passed. You may post a tutorial, but there's no guarantee that the original asker will purchase the tutorial. But other people might!

Question

• From Physics: General-Physics
• Closed, but you can still post tutorials
• Due on Apr. 01, 2012
• Asked on Mar 30, 2012 at 7:15:17PM

Rating (11):C+
Tutorials Posted: 89,
Earned: \$1,709.80

Q:

Need help on three physics questions

1) Two grams of liquid water are at 0 °C, and another two grams are at 100 °C. Heat is removed from the water at 0 °C, completely freezing it at 0 °C. This heat is then used to vaporize some of the water at 100 °C. What is the mass (in grams) of the liquid water that remains?

2)A piece of glass has a temperature of 83.0 °C. Liquid that has a temperature of 43.0 °C is poured over the glass, completely covering it, and the temperature at equilibrium is 53.0 °C. The mass of the glass and the liquid is the same. Ignoring the container that holds the glass and liquid and assuming that the heat lost to or gained from the surroundings is negligible, determine the specific heat capacity of the liquid.

3)A cubical piece of heat-shield tile from the space shuttle measures 0.10 m on a side and has a thermal conductivity of 0.065 J/(s·m·C°). The outer surface of the tile is heated to a temperature of 1150 °C, while the inner surface is maintained at a temperature of 20.0 °C.(a) How much heat flows from the outer to the inner surface of the tile in 5 minutes? (b)If this amount of heat were transferred to two liters (2.0 kg) of liquid water, by how many Celsius degrees would the temperature of the water rise?

Available Tutorials to this Question

\$2.00
for the first question
• This tutorial hasn't been purchased yet.
• Posted on Mar 30, 2012 at 8:28:11PM
Posted by :

Rating :No Rating
Tutorials Posted: 2,
Earned: \$0.00

A:
Preview: ... . This gives you mass â€˜xâ€™ as 0.297g. this is the mass that vaporized ...

The full tutorial is about 55 words long .

\$5.00
Hee find your problems solved
• This tutorial hasn't been purchased yet.
• Posted on Mar 30, 2012 at 8:39:00PM
Posted by :

Rating (397):A
Tutorials Posted: 760,
Earned: \$2,816.04

A:
Preview: ... stions ...

The full tutorial is about 4 words long plus attachments.

Attachments:
HEAT.zip (451K)

Heat.pdf
]

\$4.00
• This tutorial hasn't been purchased yet.
• Posted on Mar. 31, 2012 at 05:02:28AM
Posted by :

Rating (8):C-
Tutorials Posted: 39,
Earned: \$94.34

A:
Preview: ... though the masses are the same, the two substances have different heat capacities. The heat capacity of glass is given as 0.84 J/g/K in the table linked below. The heat capacity of the liquid is x J/g/K. 83.0 °C = 356 K; 43.0 °C = 316 K; 53.0 °C = 326 K. The initial heat content of the glass, per gram, is (356 K)(0.84 J/g/K) = ...

The full tutorial is about 308 words long .

\$5.00
• This tutorial was purchased 1 time and rated A+ by students like you.
• Posted on Apr 01, 2012 at 4:30:10PM
Posted by :

Rating (27):A+