the surface tension of a solution of soap is 0.03 and M raised to the power -1 the work done in blowing to form a soap bubble of surface area 40 cm square in joules is
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Explanation:
Given data,
Surface tension, T=0.03N/m
Surface area, ΔA=40cm
2
Work done, W=?
In case of soap bubble:
W=T×2×ΔA
=0.03×2×40×10-⁴
=2.4×10-⁴
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