Three different substances have their specific heats in the ratio 2:3:1 and their temperatures are increased in the ratio 3:1:2 respectively. If same heat is supplied to these substances, find the ratio of their masses.
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Solution
Let the three substances be A, B, C.
We know,
Q=mCΔT⟹m=QCΔT
The ratio becomes,
mA:mB:mC=QCAΔTA:QCBΔTB:QCCΔTC, since heat is supplied same, Q gets cancelled.
And also its given, CA:CB:CC=2:3:1 and ΔTA:ΔTB:ΔTC=3:1:2