Question

. If 55.5 g of aluminum is heated to 95.0 °C and placed into 500.0 g of water at 30.0°C , What

is the final temperature of the system? Cp of aluminum is.900J/gºC

Answer 1

The final temperature of the system : 31.5 °C

Further explanation

Given

55.5 g Al, 95 C

500 g water, 30 C

C Al = 0.900 J/gºC

Required

the final temperature

Solution

Q in = Q out

Q absorbed = Q released

Q water = Q Aluminium

`\tt 500* 4.186* (t-30)=55.5* 0.9* (95-t)\\\\2093t-62790=4702.5-49.5t\\\\2142.5t=67492.5\rightarrow t=31.5^oC`