Substances operating under matching reduced pressures and temperatures are said to inhabit 'corresponding states'. At these equivalent conditions, the ____________ of various gases remain nearly identical?
Show answer Hide answer
Answer: A. Compressibility
Explanation
Theorem of corresponding states dictates that gases at matching reduced pressures share properties. Compressibility factor becomes nearly identical for different gases at equivalent reduced states. This principle allows generalized property estimation without requiring substance specific empirical constants. Reduced properties are calculated by dividing actual pressure and temperature by critical values. Compressibility factor corrects ideal gas equations to account for real gas volumetric behavior. Generalized compressibility charts provide rapid engineering estimates for diverse hydrocarbon gases.
Petrochemical plant design relies on corresponding states principles to estimate high pressure properties. Process simulation software uses generalized thermodynamic correlations for complex gas mixtures. Engineering calculations involving unfamiliar chemical compounds utilize corresponding states estimations safely. Option B molecular weight is an intrinsic molecular property, not a variable state function. Option C humidity applies exclusively to vapor gas mixtures rather than pure gas corresponding states. Option D is wrong because compressibility successfully correlates across gases in corresponding states.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. How does the thermal conductivity of refractory bricks behave under varying conditions____________________?
Show answer Hide answer
Answer: A. Increases with decrease in porosity
Solid refractory material conducts thermal energy much better than trapped air inside pores. Decreasing porosity removes insulating air pockets and increases solid material density. Consequently, thermal conductivity ris...
Q2. The heat capacity of a solid chemical compound can be determined from its constituent elements' atomic heat capacities using___________________?
Show answer Hide answer
Answer: B. Kopp’s rule
Kopp rule provides an empirical method to estimate solid heat capacities using additive atomic heat capacity values. The rule states that the heat capacity of a solid compound equals the sum of the heat capacities of its...
Q3. What are the standard units of power____________________?
Show answer Hide answer
Answer: D. Both B. & C.
Power measures the rate at which work is performed or energy is transferred over time. The watt serves as the standard international unit for expressing electrical and mechanical power. One watt is dimensionally equivale...
Q4. Two liquid streams A1 and A2 exhibit pH levels of 2 and 6 respectively, which indicates that the solution_____________________?
Show answer Hide answer
Answer: D. Both A. & C.
A pH of two indicates a high concentration of hydrogen ions, making the solution strongly acidic. A pH of six represents a lower hydrogen ion concentration, making that solution very slightly acidic. Both statements corr...
Q5. The moisture level in raw refractory materials prepared for manual brick shaping is roughly _____________ percent?
Show answer Hide answer
Answer: B. 20
Raw refractory materials require optimal moisture content to achieve the necessary workability and mechanical strength during shaping. Industry standard manufacturing practices for manual brick molding typically maintain...
Q6. The relationship between vapor pressure and temperature is evaluated via the Clausius-Clapeyron equation, which relies on the premise that the________________?
Show answer Hide answer
Answer: D. All A., B. & C.
The Clausius Clapeyron equation assumes vapor behaves as an ideal gas at moderate pressures. It treats the latent heat of vaporization as a constant over the evaluated temperature range. It assumes liquid molar volume is...