Search the web. steringPhysics A13 CH 12 HW Thermal Properties of Matter-Google

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Search the web. steringPhysics A13 CH 12 HW Thermal Properties of Matter-Google Chrome cure https//session.masteringphysics.com/myct/itemView2assignmentProblemiD 78502585&offset-prev; Problem ,246 . Enhanced . with Feedback l 12 of 15 I nex roblem 12.46-Enhanced-with Feedback sa may want to review (aa esus. art A and completely bol t away? The specific heat of waher is 4190 3/(kg -K) and its heat of What minimum heat is needed to bring 250 5of water at 40 C to the bolling point vaporization in 22 6x10 J/kg Express your answer to two significant figures and include the appropriate units Q-1606900 1J Incorrect Try Again; 5 attempts remaining e G 302 AM 8/6/201 pe here to search

Explanation / Answer

Boing from 40 °C to 100 °C(boiling point of water)=>

Q=mcT

mass = .25Kg ,specific heat=4190 J/(kgK)

Q=0.250 x 4190 x (100-40)=62850 J

For bringing .250kg completely boil away

Q=Lm x m=22.6×105 J/kg x 0.250=565000 J

Q=62850 J+565000 J= 627850 J

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