"How many calories of heat are required to raise the temperature of 650 g of water from 13.0C to 20.0C? (Heat of water is 1.00cal/g X C) "
To determine the number of calories of heat required to raise the temperature of 650 g of water from 13.0°C to 20.0°C, you can use the formula:
Heat = Mass × Specific Heat Capacity × Temperature Change
First, let's calculate the temperature change, which is the difference between the final temperature and the initial temperature:
Temperature Change = Final Temperature - Initial Temperature
= 20.0°C - 13.0°C
= 7.0°C
Next, we need to substitute the given values into the formula:
Heat = Mass × Specific Heat Capacity × Temperature Change
= 650 g × 1.00 cal/g°C × 7.0°C
= 4550 cal
Therefore, it requires 4550 calories of heat to raise the temperature of 650 g of water from 13.0°C to 20.0°C.