Apiece of glass with a mass of 32.50 g specific heat of 0.840 j/g*°c and an initial temperature of 115 °c was dropped into a calorimeter containing 57 g of water (specific heat 4.184 j/g*°c). the final temperature of the glass and water in the calorimeter was 119.2 °c. what was the initial temperature of the water?
39.84°c
79.68°c
119.84°c
139.68°c
Answers: 3
![m_1\times c_g\times (T_{final}-T_2)=-[m_2\times c_w\times (T_{final}-T_1)]](/tpl/images/0305/5772/96ec8.png)
.................(1)
= mass of glass = 32.50 g
= mass of water = 57 g
= final temperature of water and glass = 
= initial temperature of water = ?
= initial temperature glass = 
= specific heat of water = 
= specific heat of glass = 
![(32.50g)\times (0.840J/g^oC)\times (119.2^oC-115^oC)=-[(57g)\times (4.184J/g^oC)\times (119.2^oC-T_1)]](/tpl/images/0305/5772/c0a00.png)
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