Mechanical Engineering Exam  >  Mechanical Engineering Questions  >  Ambient pressure, temperature and relative hu... Start Learning for Free
Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air   
  • a)
    21.9  
  • b)
    21.4
  • c)
    13.6
  • d)
    35.1 
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Ambient pressure, temperature and relative humidity at a location are ...
Saturation pressure refers to the maximum pressure at which water vapor can exist in equilibrium with liquid water at a given temperature. In this case, the saturation pressure of water at 300 K is given as 3.6 kPa.

To calculate the specific humidity of the ambient air, we need to determine the partial pressure of water vapor in the air.

Partial pressure of water vapor (Pv) can be calculated using the relative humidity (RH) and the saturation pressure (Ps) of water at a given temperature. The formula is as follows:

Pv = RH * Ps

Given that the relative humidity is 60% and the saturation pressure at 300 K is 3.6 kPa, we can calculate the partial pressure of water vapor as:

Pv = 0.6 * 3.6 kPa
Pv = 2.16 kPa

Now, to calculate the specific humidity (SH), we can use the following formula:

SH = 0.622 * (Pv / (P - Pv))

where P is the ambient pressure. In this case, the ambient pressure is given as 101 kPa.

Substituting the values into the formula, we get:

SH = 0.622 * (2.16 kPa / (101 kPa - 2.16 kPa))
SH = 0.622 * (2.16 kPa / 98.84 kPa)
SH = 0.0136

Therefore, the specific humidity of the ambient air is 0.0136 g/kg of dry air, which is equivalent to 13.6 g/kg.

Hence, the correct answer is option C) 13.6.
Free Test
Community Answer
Ambient pressure, temperature and relative humidity at a location are ...
Given : P = 101 kPa ; T = 300 K and φ = 0.6
Pvs = 3.6 kPa at 300 K 
ω = ?


Hence, the correct option is (C).
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
Explore Courses for Mechanical Engineering exam

Similar Mechanical Engineering Doubts

Top Courses for Mechanical Engineering

Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer?
Question Description
Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer?.
Solutions for Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _____ g/kg of dry air a)21.9 b)21.4c)13.6d)35.1Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
Explore Courses for Mechanical Engineering exam

Top Courses for Mechanical Engineering

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev