The temperature in the room was t1 = 10°C, and after the room was heated, the temperature rose to t2 = 20°C. The volume of the room is 50 m^3, the pressure in it is constant and equal to p = 10^5 Pa. How much has the air mass in the room changed? Take the molar mass of air equal to M = 29*10^-3 kg/mol.

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