Question

A 5.00 kg block of ice melts at a temperature of 0 degrees Celsius.
What is the change in entropy of the ice when changing from solid
ice to water?

be detailed pls

Answer #1

A 4.50-kg block of ice at 0.00∘C falls into the ocean and melts.
The average temperature of the ocean is 3.50∘C, including all the
deep water. By how much does the change of this ice to water at
3.50∘C alter the entropy of the world? (Hint: Do you think that the
ocean temperature will change appreciably as the ice melts?) Does
the entropy increase or decrease?

1. A 36.6-kg block of ice at 0 °C is sliding on a horizontal
surface. The initial speed of the ice is 9.02 m/s and the final
speed is 3.89 m/s. Assume that the part of the block that melts has
a very small mass and that all the heat generated by kinetic
friction goes into the block of ice, and determine the mass of ice
that melts into water at 0 °C.
2. A rock of mass 0.396 kg...

Suppose that 100.0 g of ice at 0 degrees Celsius are added to
300.0 g of water at 25.00 degrees Celsius. Is this sufficient ice
to lower the temperature of the water to 5.00 degrees Celsius and
still have ice remaining? Calculate the energy (heat), which must
be removed from water to achieve the desired temperature change,
and then prove that there is (is not) sufficient ice to cool the
water. Use the specific heat capacity of water (4.184 J/g-*C)...

a 20 kg block of ice is heated from -20 degrees
Celsius to -2 degrees Celsius. how much heat does it absorbed
during the heating

Explain why, to maximize entropy, ice must remain at 0 degrees
Celsius until all of it melts?

What is the final equilbrium temperature when 40.0 grams of ice
at -12.0 degrees C is mixed with 20.0 grams of water at 32 degrees
C? The specific heat of ice is 2.10 kJ/kg degrees C, the heat of
fusion for ice at 0 degrees C is 333.7 kJ/kg, the specific heat of
water 4.186 kJ.kg degrees C, and the heat of vaporization of water
at 100 degrees C is 2,256 kJ/kg.
A. How much energy will it take to...

A small ice cube (initially at -5.00 degrees Celsius) is placed
in a calorimeter along with 750.0 grams of water (at 45.00 degrees
Celsius) and a 250.0 gram piece of copper (at 100.00 degrees
Celsius). The system comes to thermal equilibrium at 43.34 degrees
Celsius. What is the mass of the ice cube?

A block of ice of mass 0.9 kg and initial temperature T = 0
oC is placed in a sealed insulated container full of
Helium gas, initially at temperature 220 oC and pressure
of 1 atm. The volume of the Helium is 680 L, and is
constant. Helium is a monatomic ideal gas.
What is the mass of the liquid water when the system comes to
equilibrium? (In other words, how much ice melts?)
Assume no heat is lost to...

A 9 kilogram block of ice is to be heated from -36 Celsius to
140 Celsius.
How much energy is required to heat the ice from -36 to 0
Celsius?
How much energy is required to change the 0 Celsius ice into 0
Celsius water?
How much energy is required to heat the water from 0 Celsius to 100
Celsius?
How much energy is required to change the 100 Celsius water into
100 Celsius steam?
How much energy is required...

100g of ice at 0 degrees celsius is held in a copper pan (400g).
500g of water at 50 degrees celsius is added. What is the final
temperature of the system?

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