What is the number of calories needed to change the temperature of 50.0 grams of water 15.0 Celsius degrees?
1st, i am not an expert in physics by any means. just a dad. but here is what i found on a google search.
1 calorie is defined as the amount of energy needed to raise the temperature of 1 gram of water by 1C, so...
It takes 50 calories to raise your 50 grams by 1C, but you need to raise it 15C. 50*15=750. 750 calories
hope this helps
To determine the number of calories needed to change the temperature of a substance, we can use the specific heat capacity formula:
q = m * c * ΔT
where:
q = heat energy (in calories)
m = mass of the substance (in grams)
c = specific heat capacity of the substance (in calories/gram°C)
ΔT = change in temperature (in Celsius)
Since we want to calculate the number of calories needed to change the temperature of 50.0 grams of water by 15.0 degrees Celsius, we need to know the specific heat capacity of water.
The specific heat capacity of water is approximately 1 calorie/gram°C. We can plug in the values into the formula:
q = 50.0 g * 1 cal/g°C * 15.0°C
Now, let's calculate:
q = 750.0 calories
Therefore, the number of calories needed to change the temperature of 50.0 grams of water by 15.0 degrees Celsius is 750.0 calories.