Recent content by Ortanul

I'll try to derive the equation again later. Thank you for your help! Apart from that, if Antoine Equation can be fully derived from Clausius-Clapeyron Equation, I wonder why it is a empirical equation as stated on my book. Besides, could you please tell me if there is any other necessary...

Homework Statement Derive the basic relationship that the Antoine equation represents. Most importantly, explain the underlying condition when the Antoine equation applies and the underlying assumptions for the Antoine equation to be valid. Homework Equations Clausius-Clapeyron Equation...

Homework Statement A well insulated container consists of two equal volumes separated by a partition - one half an ideal gas while the other is a vacuum. The partition is removed, and the gas expands. What is the entropy change per mole? Homework Equations dS = dQrev/T S/R = Cp/R dT/T -...

Homework Statement Two containers with saturated fluid at T0, while having different total volume V1 and V2 definition of total molar volume: total liquid + vapor volume divided by the total moles Problems: 1. Compare the density of the vapor in both containers 2. Compare the density of the...

Thank you! And do you think the ice cube itself can be counted as a closed system?

Thanks for your reply! And I'm still confused about the definition of closed system. May I consider the ice cube itself as a closed system while the counter and air as the surroundings?

In order to explain the change in energy of an ice cube removed from a refrigerator and placed on the kitchen counter, I consider it as a closed system (can exchange only energy but not matter). For the first law of thermodynamics, ∆U = Q+W. I'm pretty sure that the sign of Q is positive due to...

Thanks for your reply! The equation for calculating the volume is 4/3*pi*r^3 While for the other equation... Could you please give me a hint?

@265bits Thanks for your reply! The equation for calculating the volume is 4/3*pi*r^3 While for the other equation... Could you please give me a hint?

Homework Statement Chemical-plant equipment costs rarely vary in proportion to (i.e., linearly with) size. In the simplest case, cost varies with size according to the allometric equation, C = aSb The exponent is typically between 0 and 1. For a wide variety of equipment types, it is...