How many calories are required to raise the temperature of 105 g of water from 30.0°c to 70.0°c?

Let's start by explaining that 1 Calorie () is defined as a unit of thermal energy that is equivalent to the amount of heat () needed to raise the temperature of 1 gram of water by 1 degree Celsius .

The formula to calculate it is:

  (1)

Where:

 is the mass

 is the specific heat of the element. In the case of water

 is the variation in temperature, which in this case is    

Rewriting equation (1) with the known values:

falling water hydro = water .. spectcular places these plants are

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation