For one mole of an ideal gas, increasing the temperature from 10°C to 20°C ______.
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138 grams of ethyl alcohol is mixed with 72 grams of water. The ratio of mole fraction of alcohol to water is |
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To an evacuated vessel with movable piston under external pressure of 1 atm., 0.1 mol of He and 1.0 mol of an unknown compound (vapour pressure 0.68 atm. at 0°C) are introduced. Considering the ideal gas behaviour, the total volume (in litre) of the gases at 0°C is close to |
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What are the conditions under which the relation between volume (V) and number of moles (n) of gas plotted? (P = pressure; T = temperature) |
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What is the dominant inter–molecular force or bond that must be overcome in converting liquid CH3OH to a gas? |
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A certain mass of a gas occupies a volume of 2 litres at STP. To what temperature the gas must be heated to double its volume, keeping the pressure constant? |
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When r, P and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of the rates of diffusion (rA/rB) of two gases A and B, is given as |
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At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The molecular weight of the gas Y is |
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In the equation of state of an ideal gas PV = nRT, the value of the universal gas constant would depend only on |
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If a gas expands at constant temperature, it indicates that: |
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A and B are ideal. The molecular weights of A and B are in the ratio of 1 : 4. The pressure of a gas mixture containing equal weights of A and B is P atm. What is the partial pressure (in atm) of B in the mixture? |
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