At what temperature will the rms speed of air molecules be double that of NTP?

When the room temperature becomes equal to the dew point, the relative humidity of the room is

Six molecules of an ideal gas have velocities 1, 3, 5, 5, 6 and 5 m/s respectively. At any given temperature, if $$\mathrm{\overline V}$$ and $$\mathrm{V_{rms}}$$ represent average and rms speed of the molecules, then

A given quantity of gas is taken from A to C in two ways; a) directly from A $$\to$$ C along a straight line and b) in two steps, from A $$\to$$ B and then from B $$\to$$ C. Work done and heat absorbed along the direct path A $$\to$$ C is 200 J and 280 J respectively.

If the work done along A $$\to$$ B $$\to$$ C is 80 J, then heat absorbed along this path is,