Saved Bookmarks
| 1. |
20g of water is given 2090J of heat. Determine the change in the temperature of water. |
|
Answer» When the TEMPERATURE of a 20-gram SAMPLE of water is INCREASED from 10 DEG C to 30 deg C, the heat transferred to the water is obtained by multiplying the mass of water with heat capacity and the temperature change. The heat capacity of water is 1 cal/g/deg C. The temperature change is 30−10=20 o C. The heat transferred to the water is 20×1×(30−10)=400 cal. |
|