Question

**Into 50 kg of water initially at a temperature of 15C, 2
kg of ice at -5C and 5kg of copper at 175C are added. The final
temperature of mixture is ?**

**a) 13.071C**

**b) 15.252C**

**c) 22.135C**

**d) 25.222C**

Answer #1

Into 50 kg of water initially at a temperature of 15C, 2
kg of ice at -5C and 5kg of copper at 175C are added. The final
temperature of mixture is ?
a) 13.071C
b) 15.252C
c) 22.135C
d) 25.222C

A perfectly insulated thermos contains 0.300 kg of water
initially at 50 degrees C. A mass os of 0.100 kg of water initially
at 10 degrees C is added. Ignore any heat exchanges with the
outside environment. Take the specific heat capacity of liquid
water as 4190 J/kgK. A) Draw a diagram for the situation,
indicating the relative masses and temperatures. B) Find the final
temperature of the combined water after they have mixed and
attained thermal equilibrium (HINT: equate...

A 1.1 kg block of ice is initially at a temperature of -5°C. (a)
If 5.3 ✕ 105 J of heat are added to the ice, what is the final
temperature of the system? °C (b) Suppose the amount of heat added
to the ice block is increased by a factor of 1.3. By what factor
must the mass of the ice be increased if the system is to have the
same final temperature?

5Kg of ice at -30C is added to 30 Kg at 80C. What is the temperature of the mixture ? (specific heat of ice is 2100 J/KgC, specific heat of water is 4186 J/KgC and Latent heat of fusion is 33.5 x 10^4 J/Kg)?

A 0.910 kg sample of water is initially ice at temperature
–22°C. What is the sample's entropy change if its temperature is
increased to 50°C?

A 300km mass of water with temperature 50 C is mixed with 20kg
of ice, The mixture has final temperature of 40C. What is initial
temperature of ice ?
Latent heat of evaporation of water at 101.3 kPa is ?

An insolated cup contains 1kg of water initially at 20 oC. 0.50
kg of ice, initially at 0 oC is added to the cup of water. The
water and ice are allowed to come to thermal equilibrium. The
specific heat of ice is 2000 J/kg oC, the specific heat of water
4186 J/kg oC, the latent heat of fusion of water is 33.5x104 J/kg.
What is the final temperature of the water?
(A) 0 oC
I know the answer is...

Three 102.0-g ice cubes initially at 0°C are added to 0.810 kg
of water initially at 18.0°C in an insulated container.
(a) What is the equilibrium temperature of the system?
(b) What is the mass of unmelted ice, if any, when the system is
at equilibrium?

150 g of ice at 0C is placed into 100 g of water at 15C. What is
the final temperature of the system and how much ice is left at the
end?

A sample of copper with a mass of 1.80 kg, initially at a
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a temperature of 27.0°C is added to the container, and the entire
interior of the container is allowed to come to thermal
equilibrium, where it reaches a final temperature of 70.0°C. What
mass of water (in kg) was added? Assume any water turned to steam
subsequently recondenses.

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