A 0.5 kg block of aluminum (C_aluminum = 900 J/kg middot degree C) is heated to
ID: 1498341 • Letter: A
Question
A 0.5 kg block of aluminum (C_aluminum = 900 J/kg middot degree C) is heated to 200degree C. The block is then quickly placed in an insulated tub of cold water at 0Degree C (C_water = 4186 J/kg middot degree C) and sealed. At equilibrium, the temperature of the water and block are measured to be 20degree C. If the original experiment is repeated with a 1.0 kg copper (C_coppcr = 387 J/kg middot degree C) block, what is the final temperature of the water and block? If the original experiment is repeated but 100 g of the 0degreeC water is replaced with 100 g of 0degree C ice. what is the final temperature of the water and block? If the original experiment is repeated but 100 g of the 0degreeC water is replaced with only 25 g of 0degreeC ice, what is the final temperature of the water and block?Explanation / Answer
B) Less than 200 C
Heat capacity of copper is less than half of aluminium and mass is just double so overall heat in copper is less than aluminium
C) Less than 200 C
most of heat will be used in melting of ice than rising temperature of water
D) Less than 20 C
still latent heat of ice for melting of 25 gm is more than specific heat of water of 100 gm to raise temperature 20 C
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.