question_answer

Two soap bubbles coalesce to form a single bubble. If V is the subsequent change in volume of contained air and S change in total surface area, T is the surface tension and P atmospheric pressure, then which of the following relation is correct?                                                                                                         [JEE ONLINE 12-04-2014]

A)  4PV + 3ST = 0

B)       3PV + 4ST = 0

C)  2PV + 3ST = 0

D)       3PV + 2ST = 0