Specific heats/other quantities given: cw4.186 J(g °C); CAI -0.92 J(g C); mcolCa

Question

Specific heats/other quantities given: cw4.186 J(g °C); CAI -0.92 J(g C); mcolCal 25.1 JIPc ; m coilCcoil-25.1 PRE-LAB PROBLEMS 1. [2 pts] 200 g of water is placed in a 350 g aluminum cup at 20°C. This whole system with a coil is heated until reaching 32°C. Use the equation 3.2 and the given information above to find the amount of heat transfer into the system in Joule unit. [1 pts] A measured mass of an object is 410.0 g. However, this mass fluctuates from the minimum as 409.8 g to the maximum as 410.4 g on a digital scale. The mass uncertainty Sm will be: 2. mmax mmin INTRODUCTION Follow the instruction of the manual. Go over page 15 to 18 if you have not done so.

Explanation / Answer

Q = Qwater + Qal + Qcoil

Qwater = mcdT = 200 x 4.186 x 12 = 10046 J

Qal = 350 x 0.92 x 12 = 3864

Qcoil = 25.1 x 12 = 301.2

Q = 14211.2 J

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