Physics

Problem

The temperature of an open room of volume

30 \text{ m}^3

increases from

17^\circ\text{C}

27^\circ\text{C}

due to sunshine. The atmospheric pressure in the room remains

1 \times 10^5 \text{ Pa}

. If

n_i

and

n_f

are the number of molecules in the room before and after heating, then

n_f - n_i

will be : a.

2.5 \times 10^{25}

-2.5 \times 10^{25}

-1.61 \times 10^{23}

1.38 \times 10^{23}