Calculate the amount of heat liberated (in kJ) from 394 g of mercury when it cools from 57.2 C to 12.0 C. The specific heat of mercury is 0.139 J/g C.
1
Expert's answer
2015-07-03T03:32:47-0400
The heat absorbed or released is equal to the mass of the subject · its specific heat · the change in temperature: q = m · s · Δt So, the heat liberated is: q = 394 · 0.139 ·(57.2-12.0)=2475.4 J, or 2.4754 kJ
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
"assignmentexpert.com" is professional group of people in Math subjects! They did assignments in very high level of mathematical modelling in the best quality. Thanks a lot
Comments
Leave a comment