178) A balloon filled with hydrogen at 1 atm and 27^oC has volume equal to 12000 L. On ascending, it reaches a place where the temperature is −23^oC and pressure is 0.5 atm. The volume of the balloon is:

179) A bottle of cold drink contains 200 mL liquid in which CO₂ is 0.1M. Suppose CO₂ behaves like an ideal gas, the volume of the dissolved CO₂ at STP is:

180) If HCOOH + NaOH ⇶ HCOONa + H₂O, ΔH = −13.1 kcal, then enthalpy of dissociation of HCOOH will be:

181) For which of the following cases, dS = dH⁄T:

182) The latent heat of vapourisation of a liquid at 500 K and 1 atm pressure is 10 kcal⁄mol. What will be the change in internal energy of 3 mol of liquid at same termperature?