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CBSE Class 11-science Answered

What is a pressure in stp ? What we choose in sum1 atm or 1 bar at stp ?  
Asked by devanshuchhipani | 12 Mar, 2020, 08:42: PM
answered-by-expert Expert Answer
At Standard temperature conditions, Pressure=1 bar and 1 atm is almost equal to 1bar.
So, at STP atm and 1 bar both can be written.
Answered by Ravi | 13 Mar, 2020, 05:49: PM

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CBSE 11-science - Chemistry
22.4 l of water vapour at ntp when condensed to water occupies an approximate volume of
Asked by rhythmdraco42 | 22 Apr, 2024, 10:43: PM
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CBSE 11-science - Chemistry
1.0 mole of nitrogen and 3.0 moles of PCl 5 are placed in 100 L vessel heated to 227 o C. The equilibrium pressure is 2.05 atm. Assuming ideal behaviour, calculate the degree of dissociation for PCl 5 and K p for the reaction, PCl 5 (g)⇌PCl 3 (g)+Cl 2 (g).
Asked by vishalrolaniya2005 | 20 Sep, 2023, 08:58: PM
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CBSE 11-science - Chemistry
The volume of SO2 gas (in l.mol 1) at 0◦C and 1 atmospheric pressure-760mm of Hg is equal to 22.4. Estimate the value of volume of the gas at 20◦C and 1 atmospheric pressure. Use Avogadro’s law of gas.
Asked by amanpatel95698 | 02 Mar, 2022, 12:09: AM
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CBSE 11-science - Chemistry
an ideal gas mixture contains 4 milimoles of H2 for every mili mole of Ne .The partial pressure of Ne is ?
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Asked by pushpakumari291279 | 31 Dec, 2020, 02:02: PM
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CBSE 11-science - Chemistry
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Asked by aryanvankar88 | 11 Oct, 2020, 10:07: PM
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CBSE 11-science - Chemistry
What is a pressure in stp ? What we choose in sum1 atm or 1 bar at stp ?  
Asked by devanshuchhipani | 12 Mar, 2020, 08:42: PM
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CBSE 11-science - Chemistry
Is pressure directly proportional to temperature and inversly proportional to volume 
Asked by ritua7330 | 01 Sep, 2019, 12:53: PM
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CBSE 11-science - Chemistry
You are provided with samples of O2,N2,CO2 and CO under similar conditions of temperature and pressure that they contain the same number of molecules represented by letter M . The molecules of O2 occupy the volume of N litres and have a mass of 8g under similar conditions of temperature and pressure A) I) what volume is occupied by M molecules of N2? II) what volume is occupied by 3M molecules of CO ? B) what is the mass of CO2 in grams C) name the law of above questions
Asked by sajidivakaran | 21 Jul, 2019, 09:41: AM
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CBSE 11-science - Chemistry
The volume occupied by a certain gas was found 5.6 dm3  when the pressure was 2 atmosphere. If the  pressure is increased by 15%, find the new volume of the gas.
Asked by shashank1854 | 28 May, 2019, 04:48: PM
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CBSE 11-science - Chemistry
At a given temperature the pressure of gas reduces to 75% of its initial value and the volume increases by 40% of its initial value. Find the temperature if the initial temperature was -10 degree Celsius. 
Asked by skkvaish | 23 May, 2019, 08:20: AM
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