According to ideal gas equation `(PV)/(nT)` for ga will always be constant and the constant is same for all gaes. The constant representd as R is termed as universal gas constant has a value equal to 0.0821 atm-lit/mol-K. Another constant Boltzmann constant is defined as `(R)/(N_(A))`=k where `N_(A)` representes Avogadro's number.
A container of volume 40 litres consists of some gas at a pressure of 2 atm and temperature of 300 K it is heated to 400 K such that half of the gas escapes and volume changes to 60 litres The new pressure of the gas at final condition will be:

Options

A. 2 atm
B. 1 atm
C. `8/9` atm
D. `9/8` atm

Answer

c