मराठी

Name Or State the Following: the Standard Pressure of a Gas in Cm. of Mercury Corresponding to One Atmospheric Pressure. - Chemistry

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प्रश्न

Name or state the following:

The standard pressure of a gas in cm. of mercury corresponding to one atmospheric pressure.

एक शब्द/वाक्यांश उत्तर
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उत्तर

76 cm.

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Gases and Its Characteristics
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पाठ 7: Study Of Gas Laws - Study Of Gas Laws

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विराफ जे. दलाल Simplified ICSE Chemistry [English] Class 9
पाठ 7 Study Of Gas Laws
Study Of Gas Laws | Q 1.4

संबंधित प्रश्‍न

Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP: 1 atmospheric pressure, 0 °C). Show that it is 22.4 litres


The figure shows the plot of PV/versus Pfor 1.00×10–3 kg of oxygen gas at two different temperatures.

(a) What does the dotted plot signify?

(b) Which is true: TT2 or T1 < T2?

(c) What is the value of PV/where the curves meet on the y-axis?

(d) If we obtained similar plots for 1.00 ×10–3 kg of hydrogen, would we get the same value of PV/at the point where the curves meet on the y-axis? If not, what mass of hydrogen yields the same value of PV/(for low pressure high temperature region of the plot)? (Molecular mass of H= 2.02 u, of O2 = 32.0 u, = 8.31 J mo1–1 K–1.)


An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (= 8.31 J mol–1 K–1, molecular mass of O2 = 32 u)


50 m3 of saturated vapour is cooled down from 30°C to 20°C. Find the mass of the water condensed. The absolute humidity of saturated water vapour is 30 g m−3 at 30°C and 16 g m−3 at 20°C.


What do you understand by gas?


The average energy per molecule is proportional to ______ 


Estimate the average thermal energy of a helium atom at room temperature (27 °C).


At room temperature, a diatomic gas is found to have an r.m.s. speed of 1930 ms-1. The gas is ______.


P ∝ T at constant volume is the statement of ______.


Two tanks of equal volume contain equal mass of oxygen and nitrogen at 127°C. Find the ratio of pressure in two tanks.


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