Question

A flask is filled with 13 gm of an ideal gas at 27${}^0$C its temperature is raised to 52${}^0$C . The mass of the gas that has to be released to maintain the temperature of the gas in the flask at 52${}^0$C and the pressure remaining the same is

• A. 2.5 gm
• B. 2.0 g
• C. 1.5 g
• D. 1.0 g

Answer 1

The correct option is D 1.0 g

Since P, V , M and R are constants,
$m_1{T}_1=m_2{T}_{2}13\times 300=m_2\times 325m_2=12gm$
Hence mass to be removed = 13-12= 1gm