Determine the percent error in using the ideal gas model to determine the specific volume of

$($a$)$ water vapor at $2000lb\frac{f}{i}n.{?}^2,700F.$

$($b$)$ water vapor at $1lb\frac{f}{i}n.{?}^2,200F.$

$($c$)$ ammonia at $60lb\frac{f}{i}n.{?}^2,160F.$

$($d$)$ air at $1$atm,$2000R.$

$($e$)$ Refrigerant $22$ at $300lb\frac{f}{i}n.{?}^2,140F.$