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3 years ago

Calculate the heat that must be supplied to

Chemistry

1 answer:

Anton [14]3 years ago

3 0

Q must be supplied = 119523.3~J

<h3>Further explanation </h3>

The law of conservation of energy can be applied to heat changes, i.e. the heat received/absorbed is the same as the heat released

Q in = Q out

Heat can be calculated using the formula:

Q = mc∆T

Q = heat, J

m = mass, g

c = specific heat, joules / g ° C

∆T = temperature difference, ° C / K

So from the question :

Q to the system(Q supplied) = Q water + Q steel vessel(Q gained)

$\tt Q~supplied=m.c\Delta T(water)+m.c\Delta T(vessel)\\\\Q~supplied=375\times 4.18\times (100-35)+532\times 0.51(100-35)\\\\Q~supplied=101887.5+17635.8=119523.3~J$

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