An amount of heat equal to $$10.61\ \text{J}$$ is given to an ideal gas at constant pressure of one atmosphere, $$1.01\times10^5\ \text{Pa}$$. As a result the volume of the gas increases by $$30.0\ \text{cm}^3$$. The gas is

A

mono atomic

B

diatomic

C

tri-atomic

D

mixture of monoatomic and diatomic