Sealed rig: Water

A sealed rig $(1m^3)$ contains $2$ kg of water $($liquid PLUS vapour$)$ at

$20C.$ The rig is heated until the temperature inside is $95C.$

Calculate:

$1$ point

The specific volume of the system at $95C.(\frac{m^3}{k}g)$

$1$ point

The specific volume of the liquid at $95C.(\frac{m^3}{k}g)$

$1$ point

The specific volume of the vapour at $95C.(\frac{m^3}{k}g)$

$35$

$2$ points

The quality of steam at $95C.(\%)$

$1$ point

Internal energy at $20C.(k\frac{J}{k}g)$

$1$

$3$ points

The amount of energy needed to raise the temperature to its final

state. $($kJ$)$