Ideal Gases and Real Gases MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Ideal Gases and Real Gases, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Ideal Gases and Real Gases MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Ideal Gases and Real Gases mcq questions that explore various aspects of Ideal Gases and Real Gases problems. Each MCQ is crafted to challenge your understanding of Ideal Gases and Real Gases principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Ideal Gases and Real Gases MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

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Ideal Gases and Real Gases MCQs | Page 9 of 13

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Q81.
What is the pressure of CO₂ at 325 K, if it is given that pressure at 330 K is 6 Pa, and pressure at 320 K is 4 Pa?

a.

4.5 Pa

b.

5 Pa

c.

5.5 Pa

d.

6 Pa

Discuss
Answer: (b).5 Pa
Q82.
Temperature of SO₂ at 5 Pa is 395 K and at 10 Pa temperature is 420 K, what is the temperature at 6 Pa?

a.

400 K

b.

405 K

c.

410 K

d.

415 K

Discuss
Answer: (a).400 K
Q83.
At which of the following values of pressure a solid melts first?

a.

5 atm

b.

720 mm Hg

c.

500 KPa

d.

40 Torr

Discuss
Answer: (a).5 atm
Q84.
A liquid evaporates first at which of the following conditions?

a.

High attraction forces

b.

Low attraction forces

c.

Low vapor pressure

d.

High boiling point

Discuss
Answer: (b).Low attraction forces
Q85.
At triple point, vapor pressure of ice is given by ln p* = 18 – 2560/T, and vapor pressure of water is given by ln p* = 28 – 5120/T, what is the temperature at triple point?

a.

225 K

b.

256 K

c.

320 K

d.

400 K

Discuss
Answer: (b).256 K
Q86.
The vapor pressure of liquid benzene is given by ln p* = 15 – 1280/T, and that of vapor benzene is given by ln p* = 23 – 2560/T, what is the boiling point of benzene?

a.

160 K

b.

200 K

c.

240 K

d.

300 K

Discuss
Answer: (a).160 K
Q87.
The vapor pressure of a compound in liquid phase is given by ln p* = 21 – 2800/T, and in solid phase it is given by ln p* = 28 – 3500/T, what is the sublimation temperature of the compound?

a.

100 K

b.

120 K

c.

150 K

d.

200 K

Discuss
Answer: (a).100 K
Q88.
For CaOCl₂ , the rate of evaporation is given by W = 325p^0.5M/T^1.5 g/liter, where T is in K, p in mm Hg, and M is molecular weight, if its pressure is given by ln p* = 25 – 2700/T, what is the evaporation rate at T = 150 K?

a.

256 g/liter

b.

499 g/liter

c.

571 g/liter

d.

744 g/liter

Discuss
Answer: (d).744 g/liter
Q89.
What is the vapor pressure of ammonia at 305 K, if it is given that the vapor pressure of ammonia at 315 K is 5 mm Hg and at 325 K it is 6 mm Hg?

a.

1 mm Hg

b.

2 mm Hg

c.

3 mm Hg

d.

4 mm Hg

Discuss
Answer: (d).4 mm Hg
Q90.
The pressure of a compound at 200 K is 10 mm Hg and at 400 K it is 50 mm Hg, what is the pressure at T = 250 K?

a.

18.1 mm Hg

b.

24.2 mm Hg

c.

36.3 mm Hg

d.

48.4 mm Hg

Discuss
Answer: (a).18.1 mm Hg
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