How much heat is required to increase the temperature of 198.5 grams of water from 25.0 degrees celsius

How does a hydroelectric power plant converts energy into energy.

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm

Stage in which a typical star has completely stopped fusion