2.4 x10−2cm−3
1.6 x10−2cm−3
8 x10−2cm−3
5 x10−2cm−3
4 x10−2cm−3
Correct answer is A
3α=ΔVV1ΔT⇒ΔV100×40=3αwhereα=2×10−6ΔV4000=6×10−6⇒Δ=4×103×6×10−6=2.4×10−2cm−3
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