A perfect gas at ${27}^0\mathrm{C}$ is heated at constant pressure to ${627}^0\mathrm{C}.$ if original volume of gas at ${27}^0\mathrm{C}$ is V, then volume at ${627}^0\mathrm{C}.$

• A

  V

• B

  3V

• C

  2V

• D

  V/2