Question

An insulated Thermos contains 119 g of water at 75.1 ˚C. You put in a 9.16 g ice cube at 0.00 ˚C to form a system of ice + original water. The specific heat of liquid water is 4190 J/kg•K; and the heat of fusion of water is 333 kJ/kg. What is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?

Answer #1

An insulated Thermos contains 115 g of water at 78.7 ˚C. You put
in a 10.0 g ice cube at 0.00 ˚C to form a system of ice +
original water. The specific heat of liquid water is 4190
J/kg•K; and the heat of fusion of water is 333 kJ/kg. What is the
net entropy change of the system from then until the system reaches
the final (equilibrium) temperature?

An insulated Thermos contains 113 g of water at 77.3 ˚C. You put
in a 10.3 g ice cube at 0.00 ˚C to form a system of ice + original
water. The specific heat of liquid water is 4190 J/kg•K; and the
heat of fusion of water is 333 kJ/kg. What is the net entropy
change of the system from then until the system reaches the final
(equilibrium) temperature?

An 11 g ice cube at -12˚C is put into a Thermos flask containing
145 cm3 of water at 24˚C. By how much has the entropy of
the cube-water system changed when a final equilibrium state is
reached? The specific heat of ice is 2200 J/kg K and that of liquid
water is 4187 J/kg K. The heat of fusion of water is 333 ×
103 J/kg.
and
A 6.0 g ice cube at -21˚C is put into a Thermos...

An 10 g ice cube at -13˚C is put into a Thermos flask containing
115 cm3 of water at 20˚C. By how much has the entropy of
the cube-water system changed when a final equilibrium state is
reached? The specific heat of ice is 2200 J/kg K and that of liquid
water is 4187 J/kg K. The heat of fusion of water is 333 ×
103 J/kg.

An insulated beaker with negligible mass contains liquid water
with a mass of 0.320 kg and a temperature of 74.4 ∘C
How much ice at a temperature of -21.0 ∘C∘C must be dropped into
the water so that the final temperature of the system will be 26.0
∘C∘C ?
Take the specific heat of liquid water to be 4190 J/kg⋅KJ/kg⋅K ,
the specific heat of ice to be 2100 J/kg⋅KJ/kg⋅K , and the heat of
fusion for water to be...

An insulated beaker with negligible mass contains liquid water
with a mass of 0.280 kgkg and a temperature of 75.2 ∘C.
How much ice at a temperature of -19.0 ∘C∘C must be dropped into
the water so that the final temperature of the system will be 32.0
∘C∘C ?
Take the specific heat of liquid water to be 4190 J/kg⋅KJ/kg⋅K ,
the specific heat of ice to be 2100 J/kg⋅KJ/kg⋅K , and the heat of
fusion for water to be...

Adding Ice to Water
An insulated beaker with negligible mass contains liquid water
with a mass of 0.340 kg and a temperature of 66.3 ∘C .
How much ice at a temperature of -17.9 ∘C must be dropped into
the water so that the final temperature of the system will be 22.0
∘C ?
Take the specific heat of liquid water to be 4190 J/kg⋅K , the
specific heat of ice to be 2100 J/kg⋅K , and the heat of...

An insulated beaker with negligible mass contains liquid water
with a mass of 0.345 kg and a temperature of 76.5 ∘C .
How much ice at a temperature of -19.9 ∘C must be dropped into
the water so that the final temperature of the system will be 27.0
∘C ?
Take the specific heat of liquid water to be 4190 J/kg⋅K , the
specific heat of ice to be 2100 J/kg⋅K , and the heat of fusion for
water to...

An insulated beaker with negligible mass contains liquid water
with a mass of 0.235 kg and a temperature of 68.6 ∘C .
How much ice at a temperature of -20.0 ∘C must be dropped into
the water so that the final temperature of the system will be 25.0
∘C ?
Take the specific heat of liquid water to be 4190 J/kg⋅K , the
specific heat of ice to be 2100 J/kg⋅K , and the heat of fusion for
water to...

An insulated beaker with negligible mass contains liquid water
with a mass of 0.235 kg and a temperature of 66.5 ∘C .
How much ice at a temperature of -18.4 ∘C must be dropped into
the water so that the final temperature of the system will be 20.0
∘C ?
Take the specific heat of liquid water to be 4190 J/kg⋅K , the
specific heat of ice to be 2100 J/kg⋅K , and the heat of fusion for
water to...

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