Write the formula, substitute numbers and units(labels)Mike mixed 20g of 60C water with 40g of 25C water. The final temperature was 39C.

1.Calculate the change of temperature for hot water.

2.Calculate the calories transferred from the hot water.

3.Calculate the amount of heat transferred to the cold water.

HELP!!!

heat lost by hot water + heat gained by cold water = 0 BUT something is wrong here because it doesn't. Heat was lost somewhere to the surroundings.

1. Temperature change is 60-39.

2. mass water x specific heat x (Tfinal-Tinitial) = 20g x (1 cal/g*c) x (39-60) = ??

3. 40g x (1 cal/g*c) x (39-25)= ??

Sure, I can help you with that! Here's how you can calculate the answers to each of the questions:

1. To calculate the change in temperature for the hot water, you can use the formula:

Change in temperature = Final temperature - Initial temperature

In this case, the initial temperature of the hot water is 60°C and the final temperature is 39°C. So, the change in temperature would be:

Change in temperature = 39°C - 60°C

2. To calculate the calories transferred from the hot water, you can use the specific heat capacity formula:

Calories transferred = Mass * Specific heat capacity * Change in temperature

First, you need to convert the mass of the hot water from grams to kilograms, as the specific heat capacity is usually given in joules per gram Kelvin (J/g·K) or calories per gram Celsius (cal/g°C). So, divide the mass by 1000 to convert it to kilograms.

Then, you need to look up the specific heat capacity of water, which is 4.18 J/g·K or 1 cal/g°C.

Now you can substitute the values into the formula:

Calories transferred = (Mass of hot water / 1000) * Specific heat capacity * Change in temperature

Substitute the values: Mass of hot water = 20g

3. To calculate the amount of heat transferred to the cold water, you can use the same formula as in question 2:

Amount of heat transferred = Mass * Specific heat capacity * Change in temperature

In this case, the mass of the cold water is 40g, and the final temperature of the cold water is the same as the final temperature of the whole mixture, which is 39°C.

Substitute the values: Mass of cold water = 40g

I hope this helps! If you need any further assistance, feel free to ask.