To convert any amount of Gypsum to its Sulphuric Acid equivalent, simply multiply the weight of Gypsum by the constant conversion factor of 0.57 (since \(98/172 \approx 0.57\)):
\[ \text{Weight of } \text{H}_2\text{SO}_4 = 2000 \times 0.57 = 1140\text{ kg} \]