A calorimeter containes 50g of water at `50^(@)C` . The temperature falls to `45^(@)C` in 10 minutes. When the calorimeter contains 100g of water at `50^(@)C` it takes 18 minutes for the temperature to become `45^(@)C` . Find the water equivalent of the calorimeter.

When a calorimeter contains 40g of water at 50^(@)C , then the temperature falls to 45^(@)C in 10 minutes. The same calorimeter contains 100g of water at 50^(@)C , it takes 20 minutes for the temperature to become 45^(@)C . Find the water equivalent of the calorimeter.

When a calorimeter contains 40g of water at 50^(@)C , then the temperature falls to 45^(@)C in 10 minutes. The same calorimeter contains 100g of water at 50^(@)C , it takes 20 minutes for the temperature to become 45^(@)C . Find the water equivalent of the calorimeter.

When a calorimeter contains 40g of water at 50^(@)C , then the temperature falls to 45^(@)C in 10 minutes. The same calorimeter contains 100g of water at 50^(@)C , it takes 20 minutes for the temperature to become 45^(@)C . Find the water equivalent of the calorimeter.

A calorimeter contains 10 g of water at 20^(@)C . The temperature falls to 15^(@)C in 10 min. When calorimeter contains 20 g of water at 20^(@)C , it takes 15 min for the temperature to becomes 15^(@)C . The water equivalent of the calorimeter is

A calorimeter contains 10 g of water at 20^(@)C . The temperature falls to 15^(@)C in 10 min. When calorimeter contains 20 g of water at 20^(@)C , it takes 15 min for the temperature to becomes 15^(@)C . The water equivalent of the calorimeter is

The time taken for a calorimeter containing 75g of water at 62^(@)C to cool to 58^(@)C is 9 minutes. When the calorimeter contains 105g of water, it takes 12 minutes to cool from 62^(@)C " to " 58^(@)C . The water equivalent of the calorimeter is