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18 Nov 2019

A 140 g sample of steam at 100∘C is emitted from a volcano. It condenses, cools, and falls as snow at 0∘C(specific heat of water 4.184 J/g∘C). Liquid Formula Melting Point (∘C) Heat of Fu-sion (J/g) Boiling Point (∘C) Heat of Va-porization (J/g) Water H2O 0 334 100 2260

Part A How many kilojoules of heat were released? Express your answer with the appropriate units.

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Casey Durgan
Casey DurganLv2
11 Aug 2019

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Related questions

Help plz
The constants for H2O are shown here: Specific heat of ice: sice=2.09 J/(g??C) Specific heat of liquid water: swater=4.18 J/(g??C) Enthalpy of fusion (H2O(s)?H2O(l)): ?Hfus=334 J/g Enthalpy of vaporization (H2O(l)?H2O(g)): ?Hvap=2250 J/gPart A How much heat energy, in kilojoules, is required to convert 39.0g of ice at ?18.0 ?C to water at 25.0 ?C ?Express your answer to three significant figures and include the appropriate units.Part BHow long would it take for 1.50 mol of water at 100.0 ?C to be converted completely into steam if heat were added at a constant rate of 21.0J/s ?Express your answer to three significant figures and include the appropriate units

Using the values for the heat of fusion, specific heat of water, and/or heat of vaporization, calculate the amount of heat energy in each of the following:

A. joules needed to melt 90.0 g of ice at 0 ∘C and to warm the liquid to 85.0

B. kilocalories released when 30.0 g of steam condenses at 100 ∘C and the liquid cools to 0 ∘C

C. kilojoules needed to melt 26.0 g of ice at 0 ∘C, warm the liquid to 100 ∘Cand change it to steam at 100 ∘C

∘C

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