29g of copper pellets are removed from a 300 Celsius oven and immediately dropped into 100 mL of water at 22 Celcius in an insulated cup. What will the new water temperature be?
Since the cup is insulated, there is no heat loss. Therefore the heat absorbed by the water must equal the heat given up by the pellets.
so shall i use the specific heat capacity of copper?
Yes. ...and of water: \(Delta Q_w=m_w c_w\Delta T_w\) and \(Delta Q_{c}=m_{c} c_{c}\Delta T_{c}\)
ok so Q for water will b the same as Q for copper?
Right: the heat absorbed by the water must equal the heat given up by the pellets.
and the mass of water will the same as copper?
how will i find the mass of water?
You know the volume, so you need the density of water.
ohk great!
thanku very much i got it right!! thank u:))
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