25. When 1 gm of water at 0°C and

1×10⁵ N/m² pressure is converted into ice of volume 1.091 cm³ , the external work done will be

(a)  0.0091 joule                      (b)  0.0182 joule

(c)   – 0.0091 joule                   (d)  – 0.0182 joule

Answer-a

(7)