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The pressure, dry bulb temperature, and relative humidity of air in a room are 1bar, 30ºC and 70% respectively. If the saturated steam pressure at 30ºC is 4.25kPa, the specific humidity of the room air in kg water vapour/kg dry air is
  • a)
    0.0083
  • b)
    0.0101
  • c)
    0.0191
  • d)
    0.0232
Correct answer is option 'C'. Can you explain this answer?
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°C, and 50% respectively. What is the dew point temperature?

To find the dew point temperature, we need to use the formula:

dew point temperature = (243.5 * [ln(relative humidity/100) + ((17.67 * dry bulb temperature)/(243.5 + dry bulb temperature))]) / (17.67 - [ln(relative humidity/100) + ((17.67 * dry bulb temperature)/(243.5 + dry bulb temperature))])

Plugging in the given values, we get:

dew point temperature = (243.5 * [ln(50/100) + ((17.67 * 30)/(243.5 + 30))]) / (17.67 - [ln(50/100) + ((17.67 * 30)/(243.5 + 30))])
dew point temperature = (243.5 * [-0.6931 + (5.0476/273.5)]) / (17.67 - [-0.6931 + (5.0476/273.5)])
dew point temperature = (243.5 * [0.0178]) / [18.36]
dew point temperature = 23.7°C

Therefore, the dew point temperature of the air in the room is 23.7°C.
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The pressure, dry bulb temperature, and relative humidity of air in a room are1bar, 30ºC and 70% respectively. If the saturated steam pressure at 30ºC is4.25kPa, the specific humidity of the room air in kg water vapour/kg dry air isa)0.0083b)0.0101c)0.0191d)0.0232Correct answer is option 'C'. Can you explain this answer?
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The pressure, dry bulb temperature, and relative humidity of air in a room are1bar, 30ºC and 70% respectively. If the saturated steam pressure at 30ºC is4.25kPa, the specific humidity of the room air in kg water vapour/kg dry air isa)0.0083b)0.0101c)0.0191d)0.0232Correct answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The pressure, dry bulb temperature, and relative humidity of air in a room are1bar, 30ºC and 70% respectively. If the saturated steam pressure at 30ºC is4.25kPa, the specific humidity of the room air in kg water vapour/kg dry air isa)0.0083b)0.0101c)0.0191d)0.0232Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The pressure, dry bulb temperature, and relative humidity of air in a room are1bar, 30ºC and 70% respectively. If the saturated steam pressure at 30ºC is4.25kPa, the specific humidity of the room air in kg water vapour/kg dry air isa)0.0083b)0.0101c)0.0191d)0.0232Correct answer is option 'C'. Can you explain this answer?.
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